1use std::ops::Range;
2use std::sync::Arc;
3use std::sync::atomic::AtomicBool;
4
5use acp_thread::MentionUri;
6use anyhow::Result;
7use editor::{CompletionProvider, Editor, ExcerptId};
8use fuzzy::{StringMatch, StringMatchCandidate};
9use gpui::{App, Entity, Task, WeakEntity};
10use language::{Buffer, CodeLabel, HighlightId};
11use lsp::CompletionContext;
12use project::{
13 Completion, CompletionIntent, CompletionResponse, Project, ProjectPath, Symbol, WorktreeId,
14};
15use prompt_store::PromptStore;
16use rope::Point;
17use text::{Anchor, ToPoint as _};
18use ui::prelude::*;
19use workspace::Workspace;
20
21use agent::thread_store::{TextThreadStore, ThreadStore};
22
23use crate::acp::message_editor::MessageEditor;
24use crate::context_picker::file_context_picker::{FileMatch, search_files};
25use crate::context_picker::rules_context_picker::{RulesContextEntry, search_rules};
26use crate::context_picker::symbol_context_picker::SymbolMatch;
27use crate::context_picker::symbol_context_picker::search_symbols;
28use crate::context_picker::thread_context_picker::{
29 ThreadContextEntry, ThreadMatch, search_threads,
30};
31use crate::context_picker::{
32 ContextPickerAction, ContextPickerEntry, ContextPickerMode, RecentEntry,
33 available_context_picker_entries, recent_context_picker_entries, selection_ranges,
34};
35
36pub(crate) enum Match {
37 File(FileMatch),
38 Symbol(SymbolMatch),
39 Thread(ThreadMatch),
40 Fetch(SharedString),
41 Rules(RulesContextEntry),
42 Entry(EntryMatch),
43}
44
45pub struct EntryMatch {
46 mat: Option<StringMatch>,
47 entry: ContextPickerEntry,
48}
49
50impl Match {
51 pub fn score(&self) -> f64 {
52 match self {
53 Match::File(file) => file.mat.score,
54 Match::Entry(mode) => mode.mat.as_ref().map(|mat| mat.score).unwrap_or(1.),
55 Match::Thread(_) => 1.,
56 Match::Symbol(_) => 1.,
57 Match::Rules(_) => 1.,
58 Match::Fetch(_) => 1.,
59 }
60 }
61}
62
63fn search(
64 mode: Option<ContextPickerMode>,
65 query: String,
66 cancellation_flag: Arc<AtomicBool>,
67 recent_entries: Vec<RecentEntry>,
68 prompt_store: Option<Entity<PromptStore>>,
69 thread_store: WeakEntity<ThreadStore>,
70 text_thread_context_store: WeakEntity<assistant_context::ContextStore>,
71 workspace: Entity<Workspace>,
72 cx: &mut App,
73) -> Task<Vec<Match>> {
74 match mode {
75 Some(ContextPickerMode::File) => {
76 let search_files_task =
77 search_files(query.clone(), cancellation_flag.clone(), &workspace, cx);
78 cx.background_spawn(async move {
79 search_files_task
80 .await
81 .into_iter()
82 .map(Match::File)
83 .collect()
84 })
85 }
86
87 Some(ContextPickerMode::Symbol) => {
88 let search_symbols_task =
89 search_symbols(query.clone(), cancellation_flag.clone(), &workspace, cx);
90 cx.background_spawn(async move {
91 search_symbols_task
92 .await
93 .into_iter()
94 .map(Match::Symbol)
95 .collect()
96 })
97 }
98
99 Some(ContextPickerMode::Thread) => {
100 if let Some((thread_store, context_store)) = thread_store
101 .upgrade()
102 .zip(text_thread_context_store.upgrade())
103 {
104 let search_threads_task = search_threads(
105 query.clone(),
106 cancellation_flag.clone(),
107 thread_store,
108 context_store,
109 cx,
110 );
111 cx.background_spawn(async move {
112 search_threads_task
113 .await
114 .into_iter()
115 .map(Match::Thread)
116 .collect()
117 })
118 } else {
119 Task::ready(Vec::new())
120 }
121 }
122
123 Some(ContextPickerMode::Fetch) => {
124 if !query.is_empty() {
125 Task::ready(vec![Match::Fetch(query.into())])
126 } else {
127 Task::ready(Vec::new())
128 }
129 }
130
131 Some(ContextPickerMode::Rules) => {
132 if let Some(prompt_store) = prompt_store.as_ref() {
133 let search_rules_task =
134 search_rules(query.clone(), cancellation_flag.clone(), prompt_store, cx);
135 cx.background_spawn(async move {
136 search_rules_task
137 .await
138 .into_iter()
139 .map(Match::Rules)
140 .collect::<Vec<_>>()
141 })
142 } else {
143 Task::ready(Vec::new())
144 }
145 }
146
147 None => {
148 if query.is_empty() {
149 let mut matches = recent_entries
150 .into_iter()
151 .map(|entry| match entry {
152 RecentEntry::File {
153 project_path,
154 path_prefix,
155 } => Match::File(FileMatch {
156 mat: fuzzy::PathMatch {
157 score: 1.,
158 positions: Vec::new(),
159 worktree_id: project_path.worktree_id.to_usize(),
160 path: project_path.path,
161 path_prefix,
162 is_dir: false,
163 distance_to_relative_ancestor: 0,
164 },
165 is_recent: true,
166 }),
167 RecentEntry::Thread(thread_context_entry) => Match::Thread(ThreadMatch {
168 thread: thread_context_entry,
169 is_recent: true,
170 }),
171 })
172 .collect::<Vec<_>>();
173
174 matches.extend(
175 available_context_picker_entries(
176 &prompt_store,
177 &Some(thread_store.clone()),
178 &workspace,
179 cx,
180 )
181 .into_iter()
182 .map(|mode| {
183 Match::Entry(EntryMatch {
184 entry: mode,
185 mat: None,
186 })
187 }),
188 );
189
190 Task::ready(matches)
191 } else {
192 let executor = cx.background_executor().clone();
193
194 let search_files_task =
195 search_files(query.clone(), cancellation_flag.clone(), &workspace, cx);
196
197 let entries = available_context_picker_entries(
198 &prompt_store,
199 &Some(thread_store.clone()),
200 &workspace,
201 cx,
202 );
203 let entry_candidates = entries
204 .iter()
205 .enumerate()
206 .map(|(ix, entry)| StringMatchCandidate::new(ix, entry.keyword()))
207 .collect::<Vec<_>>();
208
209 cx.background_spawn(async move {
210 let mut matches = search_files_task
211 .await
212 .into_iter()
213 .map(Match::File)
214 .collect::<Vec<_>>();
215
216 let entry_matches = fuzzy::match_strings(
217 &entry_candidates,
218 &query,
219 false,
220 true,
221 100,
222 &Arc::new(AtomicBool::default()),
223 executor,
224 )
225 .await;
226
227 matches.extend(entry_matches.into_iter().map(|mat| {
228 Match::Entry(EntryMatch {
229 entry: entries[mat.candidate_id],
230 mat: Some(mat),
231 })
232 }));
233
234 matches.sort_by(|a, b| {
235 b.score()
236 .partial_cmp(&a.score())
237 .unwrap_or(std::cmp::Ordering::Equal)
238 });
239
240 matches
241 })
242 }
243 }
244 }
245}
246
247pub struct ContextPickerCompletionProvider {
248 workspace: WeakEntity<Workspace>,
249 thread_store: WeakEntity<ThreadStore>,
250 text_thread_store: WeakEntity<TextThreadStore>,
251 message_editor: WeakEntity<MessageEditor>,
252}
253
254impl ContextPickerCompletionProvider {
255 pub fn new(
256 workspace: WeakEntity<Workspace>,
257 thread_store: WeakEntity<ThreadStore>,
258 text_thread_store: WeakEntity<TextThreadStore>,
259 message_editor: WeakEntity<MessageEditor>,
260 ) -> Self {
261 Self {
262 workspace,
263 thread_store,
264 text_thread_store,
265 message_editor,
266 }
267 }
268
269 fn completion_for_entry(
270 entry: ContextPickerEntry,
271 source_range: Range<Anchor>,
272 message_editor: WeakEntity<MessageEditor>,
273 workspace: &Entity<Workspace>,
274 cx: &mut App,
275 ) -> Option<Completion> {
276 match entry {
277 ContextPickerEntry::Mode(mode) => Some(Completion {
278 replace_range: source_range.clone(),
279 new_text: format!("@{} ", mode.keyword()),
280 label: CodeLabel::plain(mode.label().to_string(), None),
281 icon_path: Some(mode.icon().path().into()),
282 documentation: None,
283 source: project::CompletionSource::Custom,
284 insert_text_mode: None,
285 // This ensures that when a user accepts this completion, the
286 // completion menu will still be shown after "@category " is
287 // inserted
288 confirm: Some(Arc::new(|_, _, _| true)),
289 }),
290 ContextPickerEntry::Action(action) => {
291 let (new_text, on_action) = match action {
292 ContextPickerAction::AddSelections => {
293 const PLACEHOLDER: &str = "selection ";
294 let selections = selection_ranges(workspace, cx)
295 .into_iter()
296 .enumerate()
297 .map(|(ix, (buffer, range))| {
298 (
299 buffer,
300 range,
301 (PLACEHOLDER.len() * ix)..(PLACEHOLDER.len() * (ix + 1) - 1),
302 )
303 })
304 .collect::<Vec<_>>();
305
306 let new_text: String = PLACEHOLDER.repeat(selections.len());
307
308 let callback = Arc::new({
309 let source_range = source_range.clone();
310 move |_, window: &mut Window, cx: &mut App| {
311 let selections = selections.clone();
312 let message_editor = message_editor.clone();
313 let source_range = source_range.clone();
314 window.defer(cx, move |window, cx| {
315 message_editor
316 .update(cx, |message_editor, cx| {
317 message_editor.confirm_mention_for_selection(
318 source_range,
319 selections,
320 window,
321 cx,
322 )
323 })
324 .ok();
325 });
326 false
327 }
328 });
329
330 (new_text, callback)
331 }
332 };
333
334 Some(Completion {
335 replace_range: source_range.clone(),
336 new_text,
337 label: CodeLabel::plain(action.label().to_string(), None),
338 icon_path: Some(action.icon().path().into()),
339 documentation: None,
340 source: project::CompletionSource::Custom,
341 insert_text_mode: None,
342 // This ensures that when a user accepts this completion, the
343 // completion menu will still be shown after "@category " is
344 // inserted
345 confirm: Some(on_action),
346 })
347 }
348 }
349 }
350
351 fn completion_for_thread(
352 thread_entry: ThreadContextEntry,
353 source_range: Range<Anchor>,
354 recent: bool,
355 editor: WeakEntity<MessageEditor>,
356 cx: &mut App,
357 ) -> Completion {
358 let uri = match &thread_entry {
359 ThreadContextEntry::Thread { id, title } => MentionUri::Thread {
360 id: id.clone(),
361 name: title.to_string(),
362 },
363 ThreadContextEntry::Context { path, title } => MentionUri::TextThread {
364 path: path.to_path_buf(),
365 name: title.to_string(),
366 },
367 };
368
369 let icon_for_completion = if recent {
370 IconName::HistoryRerun.path().into()
371 } else {
372 uri.icon_path(cx)
373 };
374
375 let new_text = format!("{} ", uri.as_link());
376
377 let new_text_len = new_text.len();
378 Completion {
379 replace_range: source_range.clone(),
380 new_text,
381 label: CodeLabel::plain(thread_entry.title().to_string(), None),
382 documentation: None,
383 insert_text_mode: None,
384 source: project::CompletionSource::Custom,
385 icon_path: Some(icon_for_completion.clone()),
386 confirm: Some(confirm_completion_callback(
387 thread_entry.title().clone(),
388 source_range.start,
389 new_text_len - 1,
390 editor,
391 uri,
392 )),
393 }
394 }
395
396 fn completion_for_rules(
397 rule: RulesContextEntry,
398 source_range: Range<Anchor>,
399 editor: WeakEntity<MessageEditor>,
400 cx: &mut App,
401 ) -> Completion {
402 let uri = MentionUri::Rule {
403 id: rule.prompt_id.into(),
404 name: rule.title.to_string(),
405 };
406 let new_text = format!("{} ", uri.as_link());
407 let new_text_len = new_text.len();
408 let icon_path = uri.icon_path(cx);
409 Completion {
410 replace_range: source_range.clone(),
411 new_text,
412 label: CodeLabel::plain(rule.title.to_string(), None),
413 documentation: None,
414 insert_text_mode: None,
415 source: project::CompletionSource::Custom,
416 icon_path: Some(icon_path.clone()),
417 confirm: Some(confirm_completion_callback(
418 rule.title.clone(),
419 source_range.start,
420 new_text_len - 1,
421 editor,
422 uri,
423 )),
424 }
425 }
426
427 pub(crate) fn completion_for_path(
428 project_path: ProjectPath,
429 path_prefix: &str,
430 is_recent: bool,
431 is_directory: bool,
432 source_range: Range<Anchor>,
433 message_editor: WeakEntity<MessageEditor>,
434 project: Entity<Project>,
435 cx: &mut App,
436 ) -> Option<Completion> {
437 let (file_name, directory) =
438 crate::context_picker::file_context_picker::extract_file_name_and_directory(
439 &project_path.path,
440 path_prefix,
441 );
442
443 let label =
444 build_code_label_for_full_path(&file_name, directory.as_ref().map(|s| s.as_ref()), cx);
445
446 let abs_path = project.read(cx).absolute_path(&project_path, cx)?;
447
448 let file_uri = MentionUri::File {
449 abs_path,
450 is_directory,
451 };
452
453 let crease_icon_path = file_uri.icon_path(cx);
454 let completion_icon_path = if is_recent {
455 IconName::HistoryRerun.path().into()
456 } else {
457 crease_icon_path.clone()
458 };
459
460 let new_text = format!("{} ", file_uri.as_link());
461 let new_text_len = new_text.len();
462 Some(Completion {
463 replace_range: source_range.clone(),
464 new_text,
465 label,
466 documentation: None,
467 source: project::CompletionSource::Custom,
468 icon_path: Some(completion_icon_path),
469 insert_text_mode: None,
470 confirm: Some(confirm_completion_callback(
471 file_name,
472 source_range.start,
473 new_text_len - 1,
474 message_editor,
475 file_uri,
476 )),
477 })
478 }
479
480 fn completion_for_symbol(
481 symbol: Symbol,
482 source_range: Range<Anchor>,
483 message_editor: WeakEntity<MessageEditor>,
484 workspace: Entity<Workspace>,
485 cx: &mut App,
486 ) -> Option<Completion> {
487 let project = workspace.read(cx).project().clone();
488
489 let label = CodeLabel::plain(symbol.name.clone(), None);
490
491 let abs_path = project.read(cx).absolute_path(&symbol.path, cx)?;
492 let uri = MentionUri::Symbol {
493 path: abs_path,
494 name: symbol.name.clone(),
495 line_range: symbol.range.start.0.row..symbol.range.end.0.row,
496 };
497 let new_text = format!("{} ", uri.as_link());
498 let new_text_len = new_text.len();
499 let icon_path = uri.icon_path(cx);
500 Some(Completion {
501 replace_range: source_range.clone(),
502 new_text,
503 label,
504 documentation: None,
505 source: project::CompletionSource::Custom,
506 icon_path: Some(icon_path.clone()),
507 insert_text_mode: None,
508 confirm: Some(confirm_completion_callback(
509 symbol.name.clone().into(),
510 source_range.start,
511 new_text_len - 1,
512 message_editor,
513 uri,
514 )),
515 })
516 }
517
518 fn completion_for_fetch(
519 source_range: Range<Anchor>,
520 url_to_fetch: SharedString,
521 message_editor: WeakEntity<MessageEditor>,
522 cx: &mut App,
523 ) -> Option<Completion> {
524 let new_text = format!("@fetch {} ", url_to_fetch.clone());
525 let url_to_fetch = url::Url::parse(url_to_fetch.as_ref())
526 .or_else(|_| url::Url::parse(&format!("https://{url_to_fetch}")))
527 .ok()?;
528 let mention_uri = MentionUri::Fetch {
529 url: url_to_fetch.clone(),
530 };
531 let icon_path = mention_uri.icon_path(cx);
532 Some(Completion {
533 replace_range: source_range.clone(),
534 new_text: new_text.clone(),
535 label: CodeLabel::plain(url_to_fetch.to_string(), None),
536 documentation: None,
537 source: project::CompletionSource::Custom,
538 icon_path: Some(icon_path.clone()),
539 insert_text_mode: None,
540 confirm: Some(confirm_completion_callback(
541 url_to_fetch.to_string().into(),
542 source_range.start,
543 new_text.len() - 1,
544 message_editor,
545 mention_uri,
546 )),
547 })
548 }
549}
550
551fn build_code_label_for_full_path(file_name: &str, directory: Option<&str>, cx: &App) -> CodeLabel {
552 let comment_id = cx.theme().syntax().highlight_id("comment").map(HighlightId);
553 let mut label = CodeLabel::default();
554
555 label.push_str(&file_name, None);
556 label.push_str(" ", None);
557
558 if let Some(directory) = directory {
559 label.push_str(&directory, comment_id);
560 }
561
562 label.filter_range = 0..label.text().len();
563
564 label
565}
566
567impl CompletionProvider for ContextPickerCompletionProvider {
568 fn completions(
569 &self,
570 _excerpt_id: ExcerptId,
571 buffer: &Entity<Buffer>,
572 buffer_position: Anchor,
573 _trigger: CompletionContext,
574 _window: &mut Window,
575 cx: &mut Context<Editor>,
576 ) -> Task<Result<Vec<CompletionResponse>>> {
577 let state = buffer.update(cx, |buffer, _cx| {
578 let position = buffer_position.to_point(buffer);
579 let line_start = Point::new(position.row, 0);
580 let offset_to_line = buffer.point_to_offset(line_start);
581 let mut lines = buffer.text_for_range(line_start..position).lines();
582 let line = lines.next()?;
583 MentionCompletion::try_parse(line, offset_to_line)
584 });
585 let Some(state) = state else {
586 return Task::ready(Ok(Vec::new()));
587 };
588
589 let Some(workspace) = self.workspace.upgrade() else {
590 return Task::ready(Ok(Vec::new()));
591 };
592
593 let project = workspace.read(cx).project().clone();
594 let snapshot = buffer.read(cx).snapshot();
595 let source_range = snapshot.anchor_before(state.source_range.start)
596 ..snapshot.anchor_after(state.source_range.end);
597
598 let thread_store = self.thread_store.clone();
599 let text_thread_store = self.text_thread_store.clone();
600 let editor = self.message_editor.clone();
601 let Ok((exclude_paths, exclude_threads)) =
602 self.message_editor.update(cx, |message_editor, _cx| {
603 message_editor.mentioned_path_and_threads()
604 })
605 else {
606 return Task::ready(Ok(Vec::new()));
607 };
608
609 let MentionCompletion { mode, argument, .. } = state;
610 let query = argument.unwrap_or_else(|| "".to_string());
611
612 let recent_entries = recent_context_picker_entries(
613 Some(thread_store.clone()),
614 Some(text_thread_store.clone()),
615 workspace.clone(),
616 &exclude_paths,
617 &exclude_threads,
618 cx,
619 );
620
621 let prompt_store = thread_store
622 .read_with(cx, |thread_store, _cx| thread_store.prompt_store().clone())
623 .ok()
624 .flatten();
625
626 let search_task = search(
627 mode,
628 query,
629 Arc::<AtomicBool>::default(),
630 recent_entries,
631 prompt_store,
632 thread_store.clone(),
633 text_thread_store.clone(),
634 workspace.clone(),
635 cx,
636 );
637
638 cx.spawn(async move |_, cx| {
639 let matches = search_task.await;
640
641 let completions = cx.update(|cx| {
642 matches
643 .into_iter()
644 .filter_map(|mat| match mat {
645 Match::File(FileMatch { mat, is_recent }) => {
646 let project_path = ProjectPath {
647 worktree_id: WorktreeId::from_usize(mat.worktree_id),
648 path: mat.path.clone(),
649 };
650
651 Self::completion_for_path(
652 project_path,
653 &mat.path_prefix,
654 is_recent,
655 mat.is_dir,
656 source_range.clone(),
657 editor.clone(),
658 project.clone(),
659 cx,
660 )
661 }
662
663 Match::Symbol(SymbolMatch { symbol, .. }) => Self::completion_for_symbol(
664 symbol,
665 source_range.clone(),
666 editor.clone(),
667 workspace.clone(),
668 cx,
669 ),
670
671 Match::Thread(ThreadMatch {
672 thread, is_recent, ..
673 }) => Some(Self::completion_for_thread(
674 thread,
675 source_range.clone(),
676 is_recent,
677 editor.clone(),
678 cx,
679 )),
680
681 Match::Rules(user_rules) => Some(Self::completion_for_rules(
682 user_rules,
683 source_range.clone(),
684 editor.clone(),
685 cx,
686 )),
687
688 Match::Fetch(url) => Self::completion_for_fetch(
689 source_range.clone(),
690 url,
691 editor.clone(),
692 cx,
693 ),
694
695 Match::Entry(EntryMatch { entry, .. }) => Self::completion_for_entry(
696 entry,
697 source_range.clone(),
698 editor.clone(),
699 &workspace,
700 cx,
701 ),
702 })
703 .collect()
704 })?;
705
706 Ok(vec![CompletionResponse {
707 completions,
708 // Since this does its own filtering (see `filter_completions()` returns false),
709 // there is no benefit to computing whether this set of completions is incomplete.
710 is_incomplete: true,
711 }])
712 })
713 }
714
715 fn is_completion_trigger(
716 &self,
717 buffer: &Entity<language::Buffer>,
718 position: language::Anchor,
719 _text: &str,
720 _trigger_in_words: bool,
721 _menu_is_open: bool,
722 cx: &mut Context<Editor>,
723 ) -> bool {
724 let buffer = buffer.read(cx);
725 let position = position.to_point(buffer);
726 let line_start = Point::new(position.row, 0);
727 let offset_to_line = buffer.point_to_offset(line_start);
728 let mut lines = buffer.text_for_range(line_start..position).lines();
729 if let Some(line) = lines.next() {
730 MentionCompletion::try_parse(line, offset_to_line)
731 .map(|completion| {
732 completion.source_range.start <= offset_to_line + position.column as usize
733 && completion.source_range.end >= offset_to_line + position.column as usize
734 })
735 .unwrap_or(false)
736 } else {
737 false
738 }
739 }
740
741 fn sort_completions(&self) -> bool {
742 false
743 }
744
745 fn filter_completions(&self) -> bool {
746 false
747 }
748}
749
750fn confirm_completion_callback(
751 crease_text: SharedString,
752 start: Anchor,
753 content_len: usize,
754 message_editor: WeakEntity<MessageEditor>,
755 mention_uri: MentionUri,
756) -> Arc<dyn Fn(CompletionIntent, &mut Window, &mut App) -> bool + Send + Sync> {
757 Arc::new(move |_, window, cx| {
758 let message_editor = message_editor.clone();
759 let crease_text = crease_text.clone();
760 let mention_uri = mention_uri.clone();
761 window.defer(cx, move |window, cx| {
762 message_editor
763 .clone()
764 .update(cx, |message_editor, cx| {
765 message_editor.confirm_completion(
766 crease_text,
767 start,
768 content_len,
769 mention_uri,
770 window,
771 cx,
772 )
773 })
774 .ok();
775 });
776 false
777 })
778}
779
780#[derive(Debug, Default, PartialEq)]
781struct MentionCompletion {
782 source_range: Range<usize>,
783 mode: Option<ContextPickerMode>,
784 argument: Option<String>,
785}
786
787impl MentionCompletion {
788 fn try_parse(line: &str, offset_to_line: usize) -> Option<Self> {
789 let last_mention_start = line.rfind('@')?;
790 if last_mention_start >= line.len() {
791 return Some(Self::default());
792 }
793 if last_mention_start > 0
794 && line
795 .chars()
796 .nth(last_mention_start - 1)
797 .map_or(false, |c| !c.is_whitespace())
798 {
799 return None;
800 }
801
802 let rest_of_line = &line[last_mention_start + 1..];
803
804 let mut mode = None;
805 let mut argument = None;
806
807 let mut parts = rest_of_line.split_whitespace();
808 let mut end = last_mention_start + 1;
809 if let Some(mode_text) = parts.next() {
810 end += mode_text.len();
811
812 if let Some(parsed_mode) = ContextPickerMode::try_from(mode_text).ok() {
813 mode = Some(parsed_mode);
814 } else {
815 argument = Some(mode_text.to_string());
816 }
817 match rest_of_line[mode_text.len()..].find(|c: char| !c.is_whitespace()) {
818 Some(whitespace_count) => {
819 if let Some(argument_text) = parts.next() {
820 argument = Some(argument_text.to_string());
821 end += whitespace_count + argument_text.len();
822 }
823 }
824 None => {
825 // Rest of line is entirely whitespace
826 end += rest_of_line.len() - mode_text.len();
827 }
828 }
829 }
830
831 Some(Self {
832 source_range: last_mention_start + offset_to_line..end + offset_to_line,
833 mode,
834 argument,
835 })
836 }
837}
838
839#[cfg(test)]
840mod tests {
841 use super::*;
842
843 #[test]
844 fn test_mention_completion_parse() {
845 assert_eq!(MentionCompletion::try_parse("Lorem Ipsum", 0), None);
846
847 assert_eq!(
848 MentionCompletion::try_parse("Lorem @", 0),
849 Some(MentionCompletion {
850 source_range: 6..7,
851 mode: None,
852 argument: None,
853 })
854 );
855
856 assert_eq!(
857 MentionCompletion::try_parse("Lorem @file", 0),
858 Some(MentionCompletion {
859 source_range: 6..11,
860 mode: Some(ContextPickerMode::File),
861 argument: None,
862 })
863 );
864
865 assert_eq!(
866 MentionCompletion::try_parse("Lorem @file ", 0),
867 Some(MentionCompletion {
868 source_range: 6..12,
869 mode: Some(ContextPickerMode::File),
870 argument: None,
871 })
872 );
873
874 assert_eq!(
875 MentionCompletion::try_parse("Lorem @file main.rs", 0),
876 Some(MentionCompletion {
877 source_range: 6..19,
878 mode: Some(ContextPickerMode::File),
879 argument: Some("main.rs".to_string()),
880 })
881 );
882
883 assert_eq!(
884 MentionCompletion::try_parse("Lorem @file main.rs ", 0),
885 Some(MentionCompletion {
886 source_range: 6..19,
887 mode: Some(ContextPickerMode::File),
888 argument: Some("main.rs".to_string()),
889 })
890 );
891
892 assert_eq!(
893 MentionCompletion::try_parse("Lorem @file main.rs Ipsum", 0),
894 Some(MentionCompletion {
895 source_range: 6..19,
896 mode: Some(ContextPickerMode::File),
897 argument: Some("main.rs".to_string()),
898 })
899 );
900
901 assert_eq!(
902 MentionCompletion::try_parse("Lorem @main", 0),
903 Some(MentionCompletion {
904 source_range: 6..11,
905 mode: None,
906 argument: Some("main".to_string()),
907 })
908 );
909
910 assert_eq!(MentionCompletion::try_parse("test@", 0), None);
911 }
912}