1use crate::{
2 DocumentHighlight, Hover, HoverBlock, HoverBlockKind, InlayHint, InlayHintLabel,
3 InlayHintLabelPart, InlayHintLabelPartTooltip, InlayHintTooltip, Location, LocationLink,
4 MarkupContent, Project, ProjectTransaction, ResolveState,
5};
6use anyhow::{anyhow, Context, Result};
7use async_trait::async_trait;
8use client::proto::{self, PeerId};
9use futures::future;
10use gpui::{AppContext, AsyncAppContext, ModelHandle};
11use language::{
12 language_settings::{language_settings, InlayHintKind},
13 point_from_lsp, point_to_lsp, prepare_completion_documentation,
14 proto::{deserialize_anchor, deserialize_version, serialize_anchor, serialize_version},
15 range_from_lsp, range_to_lsp, Anchor, Bias, Buffer, BufferSnapshot, CachedLspAdapter, CharKind,
16 CodeAction, Completion, OffsetRangeExt, PointUtf16, ToOffset, ToPointUtf16, Transaction,
17 Unclipped,
18};
19use lsp::{
20 CompletionListItemDefaultsEditRange, DocumentHighlightKind, LanguageServer, LanguageServerId,
21 OneOf, ServerCapabilities,
22};
23use std::{cmp::Reverse, ops::Range, path::Path, sync::Arc};
24use text::LineEnding;
25
26pub fn lsp_formatting_options(tab_size: u32) -> lsp::FormattingOptions {
27 lsp::FormattingOptions {
28 tab_size,
29 insert_spaces: true,
30 insert_final_newline: Some(true),
31 ..lsp::FormattingOptions::default()
32 }
33}
34
35#[async_trait(?Send)]
36pub(crate) trait LspCommand: 'static + Sized {
37 type Response: 'static + Default + Send;
38 type LspRequest: 'static + Send + lsp::request::Request;
39 type ProtoRequest: 'static + Send + proto::RequestMessage;
40
41 fn check_capabilities(&self, _: &lsp::ServerCapabilities) -> bool {
42 true
43 }
44
45 fn to_lsp(
46 &self,
47 path: &Path,
48 buffer: &Buffer,
49 language_server: &Arc<LanguageServer>,
50 cx: &AppContext,
51 ) -> <Self::LspRequest as lsp::request::Request>::Params;
52
53 async fn response_from_lsp(
54 self,
55 message: <Self::LspRequest as lsp::request::Request>::Result,
56 project: ModelHandle<Project>,
57 buffer: ModelHandle<Buffer>,
58 server_id: LanguageServerId,
59 cx: AsyncAppContext,
60 ) -> Result<Self::Response>;
61
62 fn to_proto(&self, project_id: u64, buffer: &Buffer) -> Self::ProtoRequest;
63
64 async fn from_proto(
65 message: Self::ProtoRequest,
66 project: ModelHandle<Project>,
67 buffer: ModelHandle<Buffer>,
68 cx: AsyncAppContext,
69 ) -> Result<Self>;
70
71 fn response_to_proto(
72 response: Self::Response,
73 project: &mut Project,
74 peer_id: PeerId,
75 buffer_version: &clock::Global,
76 cx: &mut AppContext,
77 ) -> <Self::ProtoRequest as proto::RequestMessage>::Response;
78
79 async fn response_from_proto(
80 self,
81 message: <Self::ProtoRequest as proto::RequestMessage>::Response,
82 project: ModelHandle<Project>,
83 buffer: ModelHandle<Buffer>,
84 cx: AsyncAppContext,
85 ) -> Result<Self::Response>;
86
87 fn buffer_id_from_proto(message: &Self::ProtoRequest) -> u64;
88}
89
90pub(crate) struct PrepareRename {
91 pub position: PointUtf16,
92}
93
94pub(crate) struct PerformRename {
95 pub position: PointUtf16,
96 pub new_name: String,
97 pub push_to_history: bool,
98}
99
100pub(crate) struct GetDefinition {
101 pub position: PointUtf16,
102}
103
104pub(crate) struct GetTypeDefinition {
105 pub position: PointUtf16,
106}
107
108pub(crate) struct GetReferences {
109 pub position: PointUtf16,
110}
111
112pub(crate) struct GetDocumentHighlights {
113 pub position: PointUtf16,
114}
115
116pub(crate) struct GetHover {
117 pub position: PointUtf16,
118}
119
120pub(crate) struct GetCompletions {
121 pub position: PointUtf16,
122}
123
124pub(crate) struct GetCodeActions {
125 pub range: Range<Anchor>,
126}
127
128pub(crate) struct OnTypeFormatting {
129 pub position: PointUtf16,
130 pub trigger: String,
131 pub options: FormattingOptions,
132 pub push_to_history: bool,
133}
134
135pub(crate) struct InlayHints {
136 pub range: Range<Anchor>,
137}
138
139pub(crate) struct FormattingOptions {
140 tab_size: u32,
141}
142
143impl From<lsp::FormattingOptions> for FormattingOptions {
144 fn from(value: lsp::FormattingOptions) -> Self {
145 Self {
146 tab_size: value.tab_size,
147 }
148 }
149}
150
151#[async_trait(?Send)]
152impl LspCommand for PrepareRename {
153 type Response = Option<Range<Anchor>>;
154 type LspRequest = lsp::request::PrepareRenameRequest;
155 type ProtoRequest = proto::PrepareRename;
156
157 fn check_capabilities(&self, capabilities: &ServerCapabilities) -> bool {
158 if let Some(lsp::OneOf::Right(rename)) = &capabilities.rename_provider {
159 rename.prepare_provider == Some(true)
160 } else {
161 false
162 }
163 }
164
165 fn to_lsp(
166 &self,
167 path: &Path,
168 _: &Buffer,
169 _: &Arc<LanguageServer>,
170 _: &AppContext,
171 ) -> lsp::TextDocumentPositionParams {
172 lsp::TextDocumentPositionParams {
173 text_document: lsp::TextDocumentIdentifier {
174 uri: lsp::Url::from_file_path(path).unwrap(),
175 },
176 position: point_to_lsp(self.position),
177 }
178 }
179
180 async fn response_from_lsp(
181 self,
182 message: Option<lsp::PrepareRenameResponse>,
183 _: ModelHandle<Project>,
184 buffer: ModelHandle<Buffer>,
185 _: LanguageServerId,
186 cx: AsyncAppContext,
187 ) -> Result<Option<Range<Anchor>>> {
188 buffer.read_with(&cx, |buffer, _| {
189 if let Some(
190 lsp::PrepareRenameResponse::Range(range)
191 | lsp::PrepareRenameResponse::RangeWithPlaceholder { range, .. },
192 ) = message
193 {
194 let Range { start, end } = range_from_lsp(range);
195 if buffer.clip_point_utf16(start, Bias::Left) == start.0
196 && buffer.clip_point_utf16(end, Bias::Left) == end.0
197 {
198 return Ok(Some(buffer.anchor_after(start)..buffer.anchor_before(end)));
199 }
200 }
201 Ok(None)
202 })
203 }
204
205 fn to_proto(&self, project_id: u64, buffer: &Buffer) -> proto::PrepareRename {
206 proto::PrepareRename {
207 project_id,
208 buffer_id: buffer.remote_id(),
209 position: Some(language::proto::serialize_anchor(
210 &buffer.anchor_before(self.position),
211 )),
212 version: serialize_version(&buffer.version()),
213 }
214 }
215
216 async fn from_proto(
217 message: proto::PrepareRename,
218 _: ModelHandle<Project>,
219 buffer: ModelHandle<Buffer>,
220 mut cx: AsyncAppContext,
221 ) -> Result<Self> {
222 let position = message
223 .position
224 .and_then(deserialize_anchor)
225 .ok_or_else(|| anyhow!("invalid position"))?;
226 buffer
227 .update(&mut cx, |buffer, _| {
228 buffer.wait_for_version(deserialize_version(&message.version))
229 })
230 .await?;
231
232 Ok(Self {
233 position: buffer.read_with(&cx, |buffer, _| position.to_point_utf16(buffer)),
234 })
235 }
236
237 fn response_to_proto(
238 range: Option<Range<Anchor>>,
239 _: &mut Project,
240 _: PeerId,
241 buffer_version: &clock::Global,
242 _: &mut AppContext,
243 ) -> proto::PrepareRenameResponse {
244 proto::PrepareRenameResponse {
245 can_rename: range.is_some(),
246 start: range
247 .as_ref()
248 .map(|range| language::proto::serialize_anchor(&range.start)),
249 end: range
250 .as_ref()
251 .map(|range| language::proto::serialize_anchor(&range.end)),
252 version: serialize_version(buffer_version),
253 }
254 }
255
256 async fn response_from_proto(
257 self,
258 message: proto::PrepareRenameResponse,
259 _: ModelHandle<Project>,
260 buffer: ModelHandle<Buffer>,
261 mut cx: AsyncAppContext,
262 ) -> Result<Option<Range<Anchor>>> {
263 if message.can_rename {
264 buffer
265 .update(&mut cx, |buffer, _| {
266 buffer.wait_for_version(deserialize_version(&message.version))
267 })
268 .await?;
269 let start = message.start.and_then(deserialize_anchor);
270 let end = message.end.and_then(deserialize_anchor);
271 Ok(start.zip(end).map(|(start, end)| start..end))
272 } else {
273 Ok(None)
274 }
275 }
276
277 fn buffer_id_from_proto(message: &proto::PrepareRename) -> u64 {
278 message.buffer_id
279 }
280}
281
282#[async_trait(?Send)]
283impl LspCommand for PerformRename {
284 type Response = ProjectTransaction;
285 type LspRequest = lsp::request::Rename;
286 type ProtoRequest = proto::PerformRename;
287
288 fn to_lsp(
289 &self,
290 path: &Path,
291 _: &Buffer,
292 _: &Arc<LanguageServer>,
293 _: &AppContext,
294 ) -> lsp::RenameParams {
295 lsp::RenameParams {
296 text_document_position: lsp::TextDocumentPositionParams {
297 text_document: lsp::TextDocumentIdentifier {
298 uri: lsp::Url::from_file_path(path).unwrap(),
299 },
300 position: point_to_lsp(self.position),
301 },
302 new_name: self.new_name.clone(),
303 work_done_progress_params: Default::default(),
304 }
305 }
306
307 async fn response_from_lsp(
308 self,
309 message: Option<lsp::WorkspaceEdit>,
310 project: ModelHandle<Project>,
311 buffer: ModelHandle<Buffer>,
312 server_id: LanguageServerId,
313 mut cx: AsyncAppContext,
314 ) -> Result<ProjectTransaction> {
315 if let Some(edit) = message {
316 let (lsp_adapter, lsp_server) =
317 language_server_for_buffer(&project, &buffer, server_id, &mut cx)?;
318 Project::deserialize_workspace_edit(
319 project,
320 edit,
321 self.push_to_history,
322 lsp_adapter,
323 lsp_server,
324 &mut cx,
325 )
326 .await
327 } else {
328 Ok(ProjectTransaction::default())
329 }
330 }
331
332 fn to_proto(&self, project_id: u64, buffer: &Buffer) -> proto::PerformRename {
333 proto::PerformRename {
334 project_id,
335 buffer_id: buffer.remote_id(),
336 position: Some(language::proto::serialize_anchor(
337 &buffer.anchor_before(self.position),
338 )),
339 new_name: self.new_name.clone(),
340 version: serialize_version(&buffer.version()),
341 }
342 }
343
344 async fn from_proto(
345 message: proto::PerformRename,
346 _: ModelHandle<Project>,
347 buffer: ModelHandle<Buffer>,
348 mut cx: AsyncAppContext,
349 ) -> Result<Self> {
350 let position = message
351 .position
352 .and_then(deserialize_anchor)
353 .ok_or_else(|| anyhow!("invalid position"))?;
354 buffer
355 .update(&mut cx, |buffer, _| {
356 buffer.wait_for_version(deserialize_version(&message.version))
357 })
358 .await?;
359 Ok(Self {
360 position: buffer.read_with(&cx, |buffer, _| position.to_point_utf16(buffer)),
361 new_name: message.new_name,
362 push_to_history: false,
363 })
364 }
365
366 fn response_to_proto(
367 response: ProjectTransaction,
368 project: &mut Project,
369 peer_id: PeerId,
370 _: &clock::Global,
371 cx: &mut AppContext,
372 ) -> proto::PerformRenameResponse {
373 let transaction = project.serialize_project_transaction_for_peer(response, peer_id, cx);
374 proto::PerformRenameResponse {
375 transaction: Some(transaction),
376 }
377 }
378
379 async fn response_from_proto(
380 self,
381 message: proto::PerformRenameResponse,
382 project: ModelHandle<Project>,
383 _: ModelHandle<Buffer>,
384 mut cx: AsyncAppContext,
385 ) -> Result<ProjectTransaction> {
386 let message = message
387 .transaction
388 .ok_or_else(|| anyhow!("missing transaction"))?;
389 project
390 .update(&mut cx, |project, cx| {
391 project.deserialize_project_transaction(message, self.push_to_history, cx)
392 })
393 .await
394 }
395
396 fn buffer_id_from_proto(message: &proto::PerformRename) -> u64 {
397 message.buffer_id
398 }
399}
400
401#[async_trait(?Send)]
402impl LspCommand for GetDefinition {
403 type Response = Vec<LocationLink>;
404 type LspRequest = lsp::request::GotoDefinition;
405 type ProtoRequest = proto::GetDefinition;
406
407 fn to_lsp(
408 &self,
409 path: &Path,
410 _: &Buffer,
411 _: &Arc<LanguageServer>,
412 _: &AppContext,
413 ) -> lsp::GotoDefinitionParams {
414 lsp::GotoDefinitionParams {
415 text_document_position_params: lsp::TextDocumentPositionParams {
416 text_document: lsp::TextDocumentIdentifier {
417 uri: lsp::Url::from_file_path(path).unwrap(),
418 },
419 position: point_to_lsp(self.position),
420 },
421 work_done_progress_params: Default::default(),
422 partial_result_params: Default::default(),
423 }
424 }
425
426 async fn response_from_lsp(
427 self,
428 message: Option<lsp::GotoDefinitionResponse>,
429 project: ModelHandle<Project>,
430 buffer: ModelHandle<Buffer>,
431 server_id: LanguageServerId,
432 cx: AsyncAppContext,
433 ) -> Result<Vec<LocationLink>> {
434 location_links_from_lsp(message, project, buffer, server_id, cx).await
435 }
436
437 fn to_proto(&self, project_id: u64, buffer: &Buffer) -> proto::GetDefinition {
438 proto::GetDefinition {
439 project_id,
440 buffer_id: buffer.remote_id(),
441 position: Some(language::proto::serialize_anchor(
442 &buffer.anchor_before(self.position),
443 )),
444 version: serialize_version(&buffer.version()),
445 }
446 }
447
448 async fn from_proto(
449 message: proto::GetDefinition,
450 _: ModelHandle<Project>,
451 buffer: ModelHandle<Buffer>,
452 mut cx: AsyncAppContext,
453 ) -> Result<Self> {
454 let position = message
455 .position
456 .and_then(deserialize_anchor)
457 .ok_or_else(|| anyhow!("invalid position"))?;
458 buffer
459 .update(&mut cx, |buffer, _| {
460 buffer.wait_for_version(deserialize_version(&message.version))
461 })
462 .await?;
463 Ok(Self {
464 position: buffer.read_with(&cx, |buffer, _| position.to_point_utf16(buffer)),
465 })
466 }
467
468 fn response_to_proto(
469 response: Vec<LocationLink>,
470 project: &mut Project,
471 peer_id: PeerId,
472 _: &clock::Global,
473 cx: &mut AppContext,
474 ) -> proto::GetDefinitionResponse {
475 let links = location_links_to_proto(response, project, peer_id, cx);
476 proto::GetDefinitionResponse { links }
477 }
478
479 async fn response_from_proto(
480 self,
481 message: proto::GetDefinitionResponse,
482 project: ModelHandle<Project>,
483 _: ModelHandle<Buffer>,
484 cx: AsyncAppContext,
485 ) -> Result<Vec<LocationLink>> {
486 location_links_from_proto(message.links, project, cx).await
487 }
488
489 fn buffer_id_from_proto(message: &proto::GetDefinition) -> u64 {
490 message.buffer_id
491 }
492}
493
494#[async_trait(?Send)]
495impl LspCommand for GetTypeDefinition {
496 type Response = Vec<LocationLink>;
497 type LspRequest = lsp::request::GotoTypeDefinition;
498 type ProtoRequest = proto::GetTypeDefinition;
499
500 fn check_capabilities(&self, capabilities: &ServerCapabilities) -> bool {
501 match &capabilities.type_definition_provider {
502 None => false,
503 Some(lsp::TypeDefinitionProviderCapability::Simple(false)) => false,
504 _ => true,
505 }
506 }
507
508 fn to_lsp(
509 &self,
510 path: &Path,
511 _: &Buffer,
512 _: &Arc<LanguageServer>,
513 _: &AppContext,
514 ) -> lsp::GotoTypeDefinitionParams {
515 lsp::GotoTypeDefinitionParams {
516 text_document_position_params: lsp::TextDocumentPositionParams {
517 text_document: lsp::TextDocumentIdentifier {
518 uri: lsp::Url::from_file_path(path).unwrap(),
519 },
520 position: point_to_lsp(self.position),
521 },
522 work_done_progress_params: Default::default(),
523 partial_result_params: Default::default(),
524 }
525 }
526
527 async fn response_from_lsp(
528 self,
529 message: Option<lsp::GotoTypeDefinitionResponse>,
530 project: ModelHandle<Project>,
531 buffer: ModelHandle<Buffer>,
532 server_id: LanguageServerId,
533 cx: AsyncAppContext,
534 ) -> Result<Vec<LocationLink>> {
535 location_links_from_lsp(message, project, buffer, server_id, cx).await
536 }
537
538 fn to_proto(&self, project_id: u64, buffer: &Buffer) -> proto::GetTypeDefinition {
539 proto::GetTypeDefinition {
540 project_id,
541 buffer_id: buffer.remote_id(),
542 position: Some(language::proto::serialize_anchor(
543 &buffer.anchor_before(self.position),
544 )),
545 version: serialize_version(&buffer.version()),
546 }
547 }
548
549 async fn from_proto(
550 message: proto::GetTypeDefinition,
551 _: ModelHandle<Project>,
552 buffer: ModelHandle<Buffer>,
553 mut cx: AsyncAppContext,
554 ) -> Result<Self> {
555 let position = message
556 .position
557 .and_then(deserialize_anchor)
558 .ok_or_else(|| anyhow!("invalid position"))?;
559 buffer
560 .update(&mut cx, |buffer, _| {
561 buffer.wait_for_version(deserialize_version(&message.version))
562 })
563 .await?;
564 Ok(Self {
565 position: buffer.read_with(&cx, |buffer, _| position.to_point_utf16(buffer)),
566 })
567 }
568
569 fn response_to_proto(
570 response: Vec<LocationLink>,
571 project: &mut Project,
572 peer_id: PeerId,
573 _: &clock::Global,
574 cx: &mut AppContext,
575 ) -> proto::GetTypeDefinitionResponse {
576 let links = location_links_to_proto(response, project, peer_id, cx);
577 proto::GetTypeDefinitionResponse { links }
578 }
579
580 async fn response_from_proto(
581 self,
582 message: proto::GetTypeDefinitionResponse,
583 project: ModelHandle<Project>,
584 _: ModelHandle<Buffer>,
585 cx: AsyncAppContext,
586 ) -> Result<Vec<LocationLink>> {
587 location_links_from_proto(message.links, project, cx).await
588 }
589
590 fn buffer_id_from_proto(message: &proto::GetTypeDefinition) -> u64 {
591 message.buffer_id
592 }
593}
594
595fn language_server_for_buffer(
596 project: &ModelHandle<Project>,
597 buffer: &ModelHandle<Buffer>,
598 server_id: LanguageServerId,
599 cx: &mut AsyncAppContext,
600) -> Result<(Arc<CachedLspAdapter>, Arc<LanguageServer>)> {
601 project
602 .read_with(cx, |project, cx| {
603 project
604 .language_server_for_buffer(buffer.read(cx), server_id, cx)
605 .map(|(adapter, server)| (adapter.clone(), server.clone()))
606 })
607 .ok_or_else(|| anyhow!("no language server found for buffer"))
608}
609
610async fn location_links_from_proto(
611 proto_links: Vec<proto::LocationLink>,
612 project: ModelHandle<Project>,
613 mut cx: AsyncAppContext,
614) -> Result<Vec<LocationLink>> {
615 let mut links = Vec::new();
616
617 for link in proto_links {
618 let origin = match link.origin {
619 Some(origin) => {
620 let buffer = project
621 .update(&mut cx, |this, cx| {
622 this.wait_for_remote_buffer(origin.buffer_id, cx)
623 })
624 .await?;
625 let start = origin
626 .start
627 .and_then(deserialize_anchor)
628 .ok_or_else(|| anyhow!("missing origin start"))?;
629 let end = origin
630 .end
631 .and_then(deserialize_anchor)
632 .ok_or_else(|| anyhow!("missing origin end"))?;
633 buffer
634 .update(&mut cx, |buffer, _| buffer.wait_for_anchors([start, end]))
635 .await?;
636 Some(Location {
637 buffer,
638 range: start..end,
639 })
640 }
641 None => None,
642 };
643
644 let target = link.target.ok_or_else(|| anyhow!("missing target"))?;
645 let buffer = project
646 .update(&mut cx, |this, cx| {
647 this.wait_for_remote_buffer(target.buffer_id, cx)
648 })
649 .await?;
650 let start = target
651 .start
652 .and_then(deserialize_anchor)
653 .ok_or_else(|| anyhow!("missing target start"))?;
654 let end = target
655 .end
656 .and_then(deserialize_anchor)
657 .ok_or_else(|| anyhow!("missing target end"))?;
658 buffer
659 .update(&mut cx, |buffer, _| buffer.wait_for_anchors([start, end]))
660 .await?;
661 let target = Location {
662 buffer,
663 range: start..end,
664 };
665
666 links.push(LocationLink { origin, target })
667 }
668
669 Ok(links)
670}
671
672async fn location_links_from_lsp(
673 message: Option<lsp::GotoDefinitionResponse>,
674 project: ModelHandle<Project>,
675 buffer: ModelHandle<Buffer>,
676 server_id: LanguageServerId,
677 mut cx: AsyncAppContext,
678) -> Result<Vec<LocationLink>> {
679 let message = match message {
680 Some(message) => message,
681 None => return Ok(Vec::new()),
682 };
683
684 let mut unresolved_links = Vec::new();
685 match message {
686 lsp::GotoDefinitionResponse::Scalar(loc) => {
687 unresolved_links.push((None, loc.uri, loc.range));
688 }
689
690 lsp::GotoDefinitionResponse::Array(locs) => {
691 unresolved_links.extend(locs.into_iter().map(|l| (None, l.uri, l.range)));
692 }
693
694 lsp::GotoDefinitionResponse::Link(links) => {
695 unresolved_links.extend(links.into_iter().map(|l| {
696 (
697 l.origin_selection_range,
698 l.target_uri,
699 l.target_selection_range,
700 )
701 }));
702 }
703 }
704
705 let (lsp_adapter, language_server) =
706 language_server_for_buffer(&project, &buffer, server_id, &mut cx)?;
707 let mut definitions = Vec::new();
708 for (origin_range, target_uri, target_range) in unresolved_links {
709 let target_buffer_handle = project
710 .update(&mut cx, |this, cx| {
711 this.open_local_buffer_via_lsp(
712 target_uri,
713 language_server.server_id(),
714 lsp_adapter.name.clone(),
715 cx,
716 )
717 })
718 .await?;
719
720 cx.read(|cx| {
721 let origin_location = origin_range.map(|origin_range| {
722 let origin_buffer = buffer.read(cx);
723 let origin_start =
724 origin_buffer.clip_point_utf16(point_from_lsp(origin_range.start), Bias::Left);
725 let origin_end =
726 origin_buffer.clip_point_utf16(point_from_lsp(origin_range.end), Bias::Left);
727 Location {
728 buffer: buffer.clone(),
729 range: origin_buffer.anchor_after(origin_start)
730 ..origin_buffer.anchor_before(origin_end),
731 }
732 });
733
734 let target_buffer = target_buffer_handle.read(cx);
735 let target_start =
736 target_buffer.clip_point_utf16(point_from_lsp(target_range.start), Bias::Left);
737 let target_end =
738 target_buffer.clip_point_utf16(point_from_lsp(target_range.end), Bias::Left);
739 let target_location = Location {
740 buffer: target_buffer_handle,
741 range: target_buffer.anchor_after(target_start)
742 ..target_buffer.anchor_before(target_end),
743 };
744
745 definitions.push(LocationLink {
746 origin: origin_location,
747 target: target_location,
748 })
749 });
750 }
751 Ok(definitions)
752}
753
754fn location_links_to_proto(
755 links: Vec<LocationLink>,
756 project: &mut Project,
757 peer_id: PeerId,
758 cx: &mut AppContext,
759) -> Vec<proto::LocationLink> {
760 links
761 .into_iter()
762 .map(|definition| {
763 let origin = definition.origin.map(|origin| {
764 let buffer_id = project.create_buffer_for_peer(&origin.buffer, peer_id, cx);
765 proto::Location {
766 start: Some(serialize_anchor(&origin.range.start)),
767 end: Some(serialize_anchor(&origin.range.end)),
768 buffer_id,
769 }
770 });
771
772 let buffer_id = project.create_buffer_for_peer(&definition.target.buffer, peer_id, cx);
773 let target = proto::Location {
774 start: Some(serialize_anchor(&definition.target.range.start)),
775 end: Some(serialize_anchor(&definition.target.range.end)),
776 buffer_id,
777 };
778
779 proto::LocationLink {
780 origin,
781 target: Some(target),
782 }
783 })
784 .collect()
785}
786
787#[async_trait(?Send)]
788impl LspCommand for GetReferences {
789 type Response = Vec<Location>;
790 type LspRequest = lsp::request::References;
791 type ProtoRequest = proto::GetReferences;
792
793 fn to_lsp(
794 &self,
795 path: &Path,
796 _: &Buffer,
797 _: &Arc<LanguageServer>,
798 _: &AppContext,
799 ) -> lsp::ReferenceParams {
800 lsp::ReferenceParams {
801 text_document_position: lsp::TextDocumentPositionParams {
802 text_document: lsp::TextDocumentIdentifier {
803 uri: lsp::Url::from_file_path(path).unwrap(),
804 },
805 position: point_to_lsp(self.position),
806 },
807 work_done_progress_params: Default::default(),
808 partial_result_params: Default::default(),
809 context: lsp::ReferenceContext {
810 include_declaration: true,
811 },
812 }
813 }
814
815 async fn response_from_lsp(
816 self,
817 locations: Option<Vec<lsp::Location>>,
818 project: ModelHandle<Project>,
819 buffer: ModelHandle<Buffer>,
820 server_id: LanguageServerId,
821 mut cx: AsyncAppContext,
822 ) -> Result<Vec<Location>> {
823 let mut references = Vec::new();
824 let (lsp_adapter, language_server) =
825 language_server_for_buffer(&project, &buffer, server_id, &mut cx)?;
826
827 if let Some(locations) = locations {
828 for lsp_location in locations {
829 let target_buffer_handle = project
830 .update(&mut cx, |this, cx| {
831 this.open_local_buffer_via_lsp(
832 lsp_location.uri,
833 language_server.server_id(),
834 lsp_adapter.name.clone(),
835 cx,
836 )
837 })
838 .await?;
839
840 cx.read(|cx| {
841 let target_buffer = target_buffer_handle.read(cx);
842 let target_start = target_buffer
843 .clip_point_utf16(point_from_lsp(lsp_location.range.start), Bias::Left);
844 let target_end = target_buffer
845 .clip_point_utf16(point_from_lsp(lsp_location.range.end), Bias::Left);
846 references.push(Location {
847 buffer: target_buffer_handle,
848 range: target_buffer.anchor_after(target_start)
849 ..target_buffer.anchor_before(target_end),
850 });
851 });
852 }
853 }
854
855 Ok(references)
856 }
857
858 fn to_proto(&self, project_id: u64, buffer: &Buffer) -> proto::GetReferences {
859 proto::GetReferences {
860 project_id,
861 buffer_id: buffer.remote_id(),
862 position: Some(language::proto::serialize_anchor(
863 &buffer.anchor_before(self.position),
864 )),
865 version: serialize_version(&buffer.version()),
866 }
867 }
868
869 async fn from_proto(
870 message: proto::GetReferences,
871 _: ModelHandle<Project>,
872 buffer: ModelHandle<Buffer>,
873 mut cx: AsyncAppContext,
874 ) -> Result<Self> {
875 let position = message
876 .position
877 .and_then(deserialize_anchor)
878 .ok_or_else(|| anyhow!("invalid position"))?;
879 buffer
880 .update(&mut cx, |buffer, _| {
881 buffer.wait_for_version(deserialize_version(&message.version))
882 })
883 .await?;
884 Ok(Self {
885 position: buffer.read_with(&cx, |buffer, _| position.to_point_utf16(buffer)),
886 })
887 }
888
889 fn response_to_proto(
890 response: Vec<Location>,
891 project: &mut Project,
892 peer_id: PeerId,
893 _: &clock::Global,
894 cx: &mut AppContext,
895 ) -> proto::GetReferencesResponse {
896 let locations = response
897 .into_iter()
898 .map(|definition| {
899 let buffer_id = project.create_buffer_for_peer(&definition.buffer, peer_id, cx);
900 proto::Location {
901 start: Some(serialize_anchor(&definition.range.start)),
902 end: Some(serialize_anchor(&definition.range.end)),
903 buffer_id,
904 }
905 })
906 .collect();
907 proto::GetReferencesResponse { locations }
908 }
909
910 async fn response_from_proto(
911 self,
912 message: proto::GetReferencesResponse,
913 project: ModelHandle<Project>,
914 _: ModelHandle<Buffer>,
915 mut cx: AsyncAppContext,
916 ) -> Result<Vec<Location>> {
917 let mut locations = Vec::new();
918 for location in message.locations {
919 let target_buffer = project
920 .update(&mut cx, |this, cx| {
921 this.wait_for_remote_buffer(location.buffer_id, cx)
922 })
923 .await?;
924 let start = location
925 .start
926 .and_then(deserialize_anchor)
927 .ok_or_else(|| anyhow!("missing target start"))?;
928 let end = location
929 .end
930 .and_then(deserialize_anchor)
931 .ok_or_else(|| anyhow!("missing target end"))?;
932 target_buffer
933 .update(&mut cx, |buffer, _| buffer.wait_for_anchors([start, end]))
934 .await?;
935 locations.push(Location {
936 buffer: target_buffer,
937 range: start..end,
938 })
939 }
940 Ok(locations)
941 }
942
943 fn buffer_id_from_proto(message: &proto::GetReferences) -> u64 {
944 message.buffer_id
945 }
946}
947
948#[async_trait(?Send)]
949impl LspCommand for GetDocumentHighlights {
950 type Response = Vec<DocumentHighlight>;
951 type LspRequest = lsp::request::DocumentHighlightRequest;
952 type ProtoRequest = proto::GetDocumentHighlights;
953
954 fn check_capabilities(&self, capabilities: &ServerCapabilities) -> bool {
955 capabilities.document_highlight_provider.is_some()
956 }
957
958 fn to_lsp(
959 &self,
960 path: &Path,
961 _: &Buffer,
962 _: &Arc<LanguageServer>,
963 _: &AppContext,
964 ) -> lsp::DocumentHighlightParams {
965 lsp::DocumentHighlightParams {
966 text_document_position_params: lsp::TextDocumentPositionParams {
967 text_document: lsp::TextDocumentIdentifier {
968 uri: lsp::Url::from_file_path(path).unwrap(),
969 },
970 position: point_to_lsp(self.position),
971 },
972 work_done_progress_params: Default::default(),
973 partial_result_params: Default::default(),
974 }
975 }
976
977 async fn response_from_lsp(
978 self,
979 lsp_highlights: Option<Vec<lsp::DocumentHighlight>>,
980 _: ModelHandle<Project>,
981 buffer: ModelHandle<Buffer>,
982 _: LanguageServerId,
983 cx: AsyncAppContext,
984 ) -> Result<Vec<DocumentHighlight>> {
985 buffer.read_with(&cx, |buffer, _| {
986 let mut lsp_highlights = lsp_highlights.unwrap_or_default();
987 lsp_highlights.sort_unstable_by_key(|h| (h.range.start, Reverse(h.range.end)));
988 Ok(lsp_highlights
989 .into_iter()
990 .map(|lsp_highlight| {
991 let start = buffer
992 .clip_point_utf16(point_from_lsp(lsp_highlight.range.start), Bias::Left);
993 let end = buffer
994 .clip_point_utf16(point_from_lsp(lsp_highlight.range.end), Bias::Left);
995 DocumentHighlight {
996 range: buffer.anchor_after(start)..buffer.anchor_before(end),
997 kind: lsp_highlight
998 .kind
999 .unwrap_or(lsp::DocumentHighlightKind::READ),
1000 }
1001 })
1002 .collect())
1003 })
1004 }
1005
1006 fn to_proto(&self, project_id: u64, buffer: &Buffer) -> proto::GetDocumentHighlights {
1007 proto::GetDocumentHighlights {
1008 project_id,
1009 buffer_id: buffer.remote_id(),
1010 position: Some(language::proto::serialize_anchor(
1011 &buffer.anchor_before(self.position),
1012 )),
1013 version: serialize_version(&buffer.version()),
1014 }
1015 }
1016
1017 async fn from_proto(
1018 message: proto::GetDocumentHighlights,
1019 _: ModelHandle<Project>,
1020 buffer: ModelHandle<Buffer>,
1021 mut cx: AsyncAppContext,
1022 ) -> Result<Self> {
1023 let position = message
1024 .position
1025 .and_then(deserialize_anchor)
1026 .ok_or_else(|| anyhow!("invalid position"))?;
1027 buffer
1028 .update(&mut cx, |buffer, _| {
1029 buffer.wait_for_version(deserialize_version(&message.version))
1030 })
1031 .await?;
1032 Ok(Self {
1033 position: buffer.read_with(&cx, |buffer, _| position.to_point_utf16(buffer)),
1034 })
1035 }
1036
1037 fn response_to_proto(
1038 response: Vec<DocumentHighlight>,
1039 _: &mut Project,
1040 _: PeerId,
1041 _: &clock::Global,
1042 _: &mut AppContext,
1043 ) -> proto::GetDocumentHighlightsResponse {
1044 let highlights = response
1045 .into_iter()
1046 .map(|highlight| proto::DocumentHighlight {
1047 start: Some(serialize_anchor(&highlight.range.start)),
1048 end: Some(serialize_anchor(&highlight.range.end)),
1049 kind: match highlight.kind {
1050 DocumentHighlightKind::TEXT => proto::document_highlight::Kind::Text.into(),
1051 DocumentHighlightKind::WRITE => proto::document_highlight::Kind::Write.into(),
1052 DocumentHighlightKind::READ => proto::document_highlight::Kind::Read.into(),
1053 _ => proto::document_highlight::Kind::Text.into(),
1054 },
1055 })
1056 .collect();
1057 proto::GetDocumentHighlightsResponse { highlights }
1058 }
1059
1060 async fn response_from_proto(
1061 self,
1062 message: proto::GetDocumentHighlightsResponse,
1063 _: ModelHandle<Project>,
1064 buffer: ModelHandle<Buffer>,
1065 mut cx: AsyncAppContext,
1066 ) -> Result<Vec<DocumentHighlight>> {
1067 let mut highlights = Vec::new();
1068 for highlight in message.highlights {
1069 let start = highlight
1070 .start
1071 .and_then(deserialize_anchor)
1072 .ok_or_else(|| anyhow!("missing target start"))?;
1073 let end = highlight
1074 .end
1075 .and_then(deserialize_anchor)
1076 .ok_or_else(|| anyhow!("missing target end"))?;
1077 buffer
1078 .update(&mut cx, |buffer, _| buffer.wait_for_anchors([start, end]))
1079 .await?;
1080 let kind = match proto::document_highlight::Kind::from_i32(highlight.kind) {
1081 Some(proto::document_highlight::Kind::Text) => DocumentHighlightKind::TEXT,
1082 Some(proto::document_highlight::Kind::Read) => DocumentHighlightKind::READ,
1083 Some(proto::document_highlight::Kind::Write) => DocumentHighlightKind::WRITE,
1084 None => DocumentHighlightKind::TEXT,
1085 };
1086 highlights.push(DocumentHighlight {
1087 range: start..end,
1088 kind,
1089 });
1090 }
1091 Ok(highlights)
1092 }
1093
1094 fn buffer_id_from_proto(message: &proto::GetDocumentHighlights) -> u64 {
1095 message.buffer_id
1096 }
1097}
1098
1099#[async_trait(?Send)]
1100impl LspCommand for GetHover {
1101 type Response = Option<Hover>;
1102 type LspRequest = lsp::request::HoverRequest;
1103 type ProtoRequest = proto::GetHover;
1104
1105 fn to_lsp(
1106 &self,
1107 path: &Path,
1108 _: &Buffer,
1109 _: &Arc<LanguageServer>,
1110 _: &AppContext,
1111 ) -> lsp::HoverParams {
1112 lsp::HoverParams {
1113 text_document_position_params: lsp::TextDocumentPositionParams {
1114 text_document: lsp::TextDocumentIdentifier {
1115 uri: lsp::Url::from_file_path(path).unwrap(),
1116 },
1117 position: point_to_lsp(self.position),
1118 },
1119 work_done_progress_params: Default::default(),
1120 }
1121 }
1122
1123 async fn response_from_lsp(
1124 self,
1125 message: Option<lsp::Hover>,
1126 _: ModelHandle<Project>,
1127 buffer: ModelHandle<Buffer>,
1128 _: LanguageServerId,
1129 cx: AsyncAppContext,
1130 ) -> Result<Self::Response> {
1131 Ok(message.and_then(|hover| {
1132 let (language, range) = cx.read(|cx| {
1133 let buffer = buffer.read(cx);
1134 (
1135 buffer.language().cloned(),
1136 hover.range.map(|range| {
1137 let token_start =
1138 buffer.clip_point_utf16(point_from_lsp(range.start), Bias::Left);
1139 let token_end =
1140 buffer.clip_point_utf16(point_from_lsp(range.end), Bias::Left);
1141 buffer.anchor_after(token_start)..buffer.anchor_before(token_end)
1142 }),
1143 )
1144 });
1145
1146 fn hover_blocks_from_marked_string(
1147 marked_string: lsp::MarkedString,
1148 ) -> Option<HoverBlock> {
1149 let block = match marked_string {
1150 lsp::MarkedString::String(content) => HoverBlock {
1151 text: content,
1152 kind: HoverBlockKind::Markdown,
1153 },
1154 lsp::MarkedString::LanguageString(lsp::LanguageString { language, value }) => {
1155 HoverBlock {
1156 text: value,
1157 kind: HoverBlockKind::Code { language },
1158 }
1159 }
1160 };
1161 if block.text.is_empty() {
1162 None
1163 } else {
1164 Some(block)
1165 }
1166 }
1167
1168 let contents = cx.read(|_| match hover.contents {
1169 lsp::HoverContents::Scalar(marked_string) => {
1170 hover_blocks_from_marked_string(marked_string)
1171 .into_iter()
1172 .collect()
1173 }
1174 lsp::HoverContents::Array(marked_strings) => marked_strings
1175 .into_iter()
1176 .filter_map(hover_blocks_from_marked_string)
1177 .collect(),
1178 lsp::HoverContents::Markup(markup_content) => vec![HoverBlock {
1179 text: markup_content.value,
1180 kind: if markup_content.kind == lsp::MarkupKind::Markdown {
1181 HoverBlockKind::Markdown
1182 } else {
1183 HoverBlockKind::PlainText
1184 },
1185 }],
1186 });
1187
1188 Some(Hover {
1189 contents,
1190 range,
1191 language,
1192 })
1193 }))
1194 }
1195
1196 fn to_proto(&self, project_id: u64, buffer: &Buffer) -> Self::ProtoRequest {
1197 proto::GetHover {
1198 project_id,
1199 buffer_id: buffer.remote_id(),
1200 position: Some(language::proto::serialize_anchor(
1201 &buffer.anchor_before(self.position),
1202 )),
1203 version: serialize_version(&buffer.version),
1204 }
1205 }
1206
1207 async fn from_proto(
1208 message: Self::ProtoRequest,
1209 _: ModelHandle<Project>,
1210 buffer: ModelHandle<Buffer>,
1211 mut cx: AsyncAppContext,
1212 ) -> Result<Self> {
1213 let position = message
1214 .position
1215 .and_then(deserialize_anchor)
1216 .ok_or_else(|| anyhow!("invalid position"))?;
1217 buffer
1218 .update(&mut cx, |buffer, _| {
1219 buffer.wait_for_version(deserialize_version(&message.version))
1220 })
1221 .await?;
1222 Ok(Self {
1223 position: buffer.read_with(&cx, |buffer, _| position.to_point_utf16(buffer)),
1224 })
1225 }
1226
1227 fn response_to_proto(
1228 response: Self::Response,
1229 _: &mut Project,
1230 _: PeerId,
1231 _: &clock::Global,
1232 _: &mut AppContext,
1233 ) -> proto::GetHoverResponse {
1234 if let Some(response) = response {
1235 let (start, end) = if let Some(range) = response.range {
1236 (
1237 Some(language::proto::serialize_anchor(&range.start)),
1238 Some(language::proto::serialize_anchor(&range.end)),
1239 )
1240 } else {
1241 (None, None)
1242 };
1243
1244 let contents = response
1245 .contents
1246 .into_iter()
1247 .map(|block| proto::HoverBlock {
1248 text: block.text,
1249 is_markdown: block.kind == HoverBlockKind::Markdown,
1250 language: if let HoverBlockKind::Code { language } = block.kind {
1251 Some(language)
1252 } else {
1253 None
1254 },
1255 })
1256 .collect();
1257
1258 proto::GetHoverResponse {
1259 start,
1260 end,
1261 contents,
1262 }
1263 } else {
1264 proto::GetHoverResponse {
1265 start: None,
1266 end: None,
1267 contents: Vec::new(),
1268 }
1269 }
1270 }
1271
1272 async fn response_from_proto(
1273 self,
1274 message: proto::GetHoverResponse,
1275 _: ModelHandle<Project>,
1276 buffer: ModelHandle<Buffer>,
1277 cx: AsyncAppContext,
1278 ) -> Result<Self::Response> {
1279 let contents: Vec<_> = message
1280 .contents
1281 .into_iter()
1282 .map(|block| HoverBlock {
1283 text: block.text,
1284 kind: if let Some(language) = block.language {
1285 HoverBlockKind::Code { language }
1286 } else if block.is_markdown {
1287 HoverBlockKind::Markdown
1288 } else {
1289 HoverBlockKind::PlainText
1290 },
1291 })
1292 .collect();
1293 if contents.is_empty() {
1294 return Ok(None);
1295 }
1296
1297 let language = buffer.read_with(&cx, |buffer, _| buffer.language().cloned());
1298 let range = if let (Some(start), Some(end)) = (message.start, message.end) {
1299 language::proto::deserialize_anchor(start)
1300 .and_then(|start| language::proto::deserialize_anchor(end).map(|end| start..end))
1301 } else {
1302 None
1303 };
1304
1305 Ok(Some(Hover {
1306 contents,
1307 range,
1308 language,
1309 }))
1310 }
1311
1312 fn buffer_id_from_proto(message: &Self::ProtoRequest) -> u64 {
1313 message.buffer_id
1314 }
1315}
1316
1317#[async_trait(?Send)]
1318impl LspCommand for GetCompletions {
1319 type Response = Vec<Completion>;
1320 type LspRequest = lsp::request::Completion;
1321 type ProtoRequest = proto::GetCompletions;
1322
1323 fn to_lsp(
1324 &self,
1325 path: &Path,
1326 _: &Buffer,
1327 _: &Arc<LanguageServer>,
1328 _: &AppContext,
1329 ) -> lsp::CompletionParams {
1330 lsp::CompletionParams {
1331 text_document_position: lsp::TextDocumentPositionParams::new(
1332 lsp::TextDocumentIdentifier::new(lsp::Url::from_file_path(path).unwrap()),
1333 point_to_lsp(self.position),
1334 ),
1335 context: Default::default(),
1336 work_done_progress_params: Default::default(),
1337 partial_result_params: Default::default(),
1338 }
1339 }
1340
1341 async fn response_from_lsp(
1342 self,
1343 completions: Option<lsp::CompletionResponse>,
1344 project: ModelHandle<Project>,
1345 buffer: ModelHandle<Buffer>,
1346 server_id: LanguageServerId,
1347 cx: AsyncAppContext,
1348 ) -> Result<Vec<Completion>> {
1349 let mut response_list = None;
1350 let completions = if let Some(completions) = completions {
1351 match completions {
1352 lsp::CompletionResponse::Array(completions) => completions,
1353
1354 lsp::CompletionResponse::List(mut list) => {
1355 let items = std::mem::take(&mut list.items);
1356 response_list = Some(list);
1357 items
1358 }
1359 }
1360 } else {
1361 Vec::new()
1362 };
1363
1364 let completions = buffer.read_with(&cx, |buffer, cx| {
1365 let language_registry = project.read(cx).languages().clone();
1366 let language = buffer.language().cloned();
1367 let snapshot = buffer.snapshot();
1368 let clipped_position = buffer.clip_point_utf16(Unclipped(self.position), Bias::Left);
1369
1370 let mut range_for_token = None;
1371 completions
1372 .into_iter()
1373 .filter_map(move |mut lsp_completion| {
1374 if let Some(response_list) = &response_list {
1375 if let Some(item_defaults) = &response_list.item_defaults {
1376 if let Some(data) = &item_defaults.data {
1377 lsp_completion.data = Some(data.clone());
1378 }
1379 }
1380 }
1381
1382 let (old_range, mut new_text) = match lsp_completion.text_edit.as_ref() {
1383 // If the language server provides a range to overwrite, then
1384 // check that the range is valid.
1385 Some(lsp::CompletionTextEdit::Edit(edit)) => {
1386 let range = range_from_lsp(edit.range);
1387 let start = snapshot.clip_point_utf16(range.start, Bias::Left);
1388 let end = snapshot.clip_point_utf16(range.end, Bias::Left);
1389 if start != range.start.0 || end != range.end.0 {
1390 log::info!("completion out of expected range");
1391 return None;
1392 }
1393 (
1394 snapshot.anchor_before(start)..snapshot.anchor_after(end),
1395 edit.new_text.clone(),
1396 )
1397 }
1398
1399 // If the language server does not provide a range, then infer
1400 // the range based on the syntax tree.
1401 None => {
1402 if self.position != clipped_position {
1403 log::info!("completion out of expected range");
1404 return None;
1405 }
1406
1407 let default_edit_range = response_list
1408 .as_ref()
1409 .and_then(|list| list.item_defaults.as_ref())
1410 .and_then(|defaults| defaults.edit_range.as_ref())
1411 .and_then(|range| match range {
1412 CompletionListItemDefaultsEditRange::Range(r) => Some(r),
1413 _ => None,
1414 });
1415
1416 let range = if let Some(range) = default_edit_range {
1417 let range = range_from_lsp(range.clone());
1418 let start = snapshot.clip_point_utf16(range.start, Bias::Left);
1419 let end = snapshot.clip_point_utf16(range.end, Bias::Left);
1420 if start != range.start.0 || end != range.end.0 {
1421 log::info!("completion out of expected range");
1422 return None;
1423 }
1424
1425 snapshot.anchor_before(start)..snapshot.anchor_after(end)
1426 } else {
1427 range_for_token
1428 .get_or_insert_with(|| {
1429 let offset = self.position.to_offset(&snapshot);
1430 let (range, kind) = snapshot.surrounding_word(offset);
1431 let range = if kind == Some(CharKind::Word) {
1432 range
1433 } else {
1434 offset..offset
1435 };
1436
1437 snapshot.anchor_before(range.start)
1438 ..snapshot.anchor_after(range.end)
1439 })
1440 .clone()
1441 };
1442
1443 let text = lsp_completion
1444 .insert_text
1445 .as_ref()
1446 .unwrap_or(&lsp_completion.label)
1447 .clone();
1448 (range, text)
1449 }
1450
1451 Some(lsp::CompletionTextEdit::InsertAndReplace(_)) => {
1452 log::info!("unsupported insert/replace completion");
1453 return None;
1454 }
1455 };
1456
1457 LineEnding::normalize(&mut new_text);
1458 let language_registry = language_registry.clone();
1459 let language = language.clone();
1460
1461 Some(async move {
1462 let mut label = None;
1463 if let Some(language) = language.as_ref() {
1464 language.process_completion(&mut lsp_completion).await;
1465 label = language.label_for_completion(&lsp_completion).await;
1466 }
1467
1468 let documentation = if let Some(lsp_docs) = &lsp_completion.documentation {
1469 prepare_completion_documentation(
1470 lsp_docs,
1471 &language_registry,
1472 language.clone(),
1473 )
1474 .await
1475 } else {
1476 None
1477 };
1478
1479 Completion {
1480 old_range,
1481 new_text,
1482 label: label.unwrap_or_else(|| {
1483 language::CodeLabel::plain(
1484 lsp_completion.label.clone(),
1485 lsp_completion.filter_text.as_deref(),
1486 )
1487 }),
1488 documentation,
1489 server_id,
1490 lsp_completion,
1491 }
1492 })
1493 })
1494 });
1495
1496 Ok(future::join_all(completions).await)
1497 }
1498
1499 fn to_proto(&self, project_id: u64, buffer: &Buffer) -> proto::GetCompletions {
1500 let anchor = buffer.anchor_after(self.position);
1501 proto::GetCompletions {
1502 project_id,
1503 buffer_id: buffer.remote_id(),
1504 position: Some(language::proto::serialize_anchor(&anchor)),
1505 version: serialize_version(&buffer.version()),
1506 }
1507 }
1508
1509 async fn from_proto(
1510 message: proto::GetCompletions,
1511 _: ModelHandle<Project>,
1512 buffer: ModelHandle<Buffer>,
1513 mut cx: AsyncAppContext,
1514 ) -> Result<Self> {
1515 let version = deserialize_version(&message.version);
1516 buffer
1517 .update(&mut cx, |buffer, _| buffer.wait_for_version(version))
1518 .await?;
1519 let position = message
1520 .position
1521 .and_then(language::proto::deserialize_anchor)
1522 .map(|p| {
1523 buffer.read_with(&cx, |buffer, _| {
1524 buffer.clip_point_utf16(Unclipped(p.to_point_utf16(buffer)), Bias::Left)
1525 })
1526 })
1527 .ok_or_else(|| anyhow!("invalid position"))?;
1528 Ok(Self { position })
1529 }
1530
1531 fn response_to_proto(
1532 completions: Vec<Completion>,
1533 _: &mut Project,
1534 _: PeerId,
1535 buffer_version: &clock::Global,
1536 _: &mut AppContext,
1537 ) -> proto::GetCompletionsResponse {
1538 proto::GetCompletionsResponse {
1539 completions: completions
1540 .iter()
1541 .map(language::proto::serialize_completion)
1542 .collect(),
1543 version: serialize_version(&buffer_version),
1544 }
1545 }
1546
1547 async fn response_from_proto(
1548 self,
1549 message: proto::GetCompletionsResponse,
1550 _: ModelHandle<Project>,
1551 buffer: ModelHandle<Buffer>,
1552 mut cx: AsyncAppContext,
1553 ) -> Result<Vec<Completion>> {
1554 buffer
1555 .update(&mut cx, |buffer, _| {
1556 buffer.wait_for_version(deserialize_version(&message.version))
1557 })
1558 .await?;
1559
1560 let language = buffer.read_with(&cx, |buffer, _| buffer.language().cloned());
1561 let completions = message.completions.into_iter().map(|completion| {
1562 language::proto::deserialize_completion(completion, language.clone())
1563 });
1564 future::try_join_all(completions).await
1565 }
1566
1567 fn buffer_id_from_proto(message: &proto::GetCompletions) -> u64 {
1568 message.buffer_id
1569 }
1570}
1571
1572#[async_trait(?Send)]
1573impl LspCommand for GetCodeActions {
1574 type Response = Vec<CodeAction>;
1575 type LspRequest = lsp::request::CodeActionRequest;
1576 type ProtoRequest = proto::GetCodeActions;
1577
1578 fn check_capabilities(&self, capabilities: &ServerCapabilities) -> bool {
1579 match &capabilities.code_action_provider {
1580 None => false,
1581 Some(lsp::CodeActionProviderCapability::Simple(false)) => false,
1582 _ => true,
1583 }
1584 }
1585
1586 fn to_lsp(
1587 &self,
1588 path: &Path,
1589 buffer: &Buffer,
1590 language_server: &Arc<LanguageServer>,
1591 _: &AppContext,
1592 ) -> lsp::CodeActionParams {
1593 let relevant_diagnostics = buffer
1594 .snapshot()
1595 .diagnostics_in_range::<_, usize>(self.range.clone(), false)
1596 .map(|entry| entry.to_lsp_diagnostic_stub())
1597 .collect();
1598 lsp::CodeActionParams {
1599 text_document: lsp::TextDocumentIdentifier::new(
1600 lsp::Url::from_file_path(path).unwrap(),
1601 ),
1602 range: range_to_lsp(self.range.to_point_utf16(buffer)),
1603 work_done_progress_params: Default::default(),
1604 partial_result_params: Default::default(),
1605 context: lsp::CodeActionContext {
1606 diagnostics: relevant_diagnostics,
1607 only: language_server.code_action_kinds(),
1608 ..lsp::CodeActionContext::default()
1609 },
1610 }
1611 }
1612
1613 async fn response_from_lsp(
1614 self,
1615 actions: Option<lsp::CodeActionResponse>,
1616 _: ModelHandle<Project>,
1617 _: ModelHandle<Buffer>,
1618 server_id: LanguageServerId,
1619 _: AsyncAppContext,
1620 ) -> Result<Vec<CodeAction>> {
1621 Ok(actions
1622 .unwrap_or_default()
1623 .into_iter()
1624 .filter_map(|entry| {
1625 if let lsp::CodeActionOrCommand::CodeAction(lsp_action) = entry {
1626 Some(CodeAction {
1627 server_id,
1628 range: self.range.clone(),
1629 lsp_action,
1630 })
1631 } else {
1632 None
1633 }
1634 })
1635 .collect())
1636 }
1637
1638 fn to_proto(&self, project_id: u64, buffer: &Buffer) -> proto::GetCodeActions {
1639 proto::GetCodeActions {
1640 project_id,
1641 buffer_id: buffer.remote_id(),
1642 start: Some(language::proto::serialize_anchor(&self.range.start)),
1643 end: Some(language::proto::serialize_anchor(&self.range.end)),
1644 version: serialize_version(&buffer.version()),
1645 }
1646 }
1647
1648 async fn from_proto(
1649 message: proto::GetCodeActions,
1650 _: ModelHandle<Project>,
1651 buffer: ModelHandle<Buffer>,
1652 mut cx: AsyncAppContext,
1653 ) -> Result<Self> {
1654 let start = message
1655 .start
1656 .and_then(language::proto::deserialize_anchor)
1657 .ok_or_else(|| anyhow!("invalid start"))?;
1658 let end = message
1659 .end
1660 .and_then(language::proto::deserialize_anchor)
1661 .ok_or_else(|| anyhow!("invalid end"))?;
1662 buffer
1663 .update(&mut cx, |buffer, _| {
1664 buffer.wait_for_version(deserialize_version(&message.version))
1665 })
1666 .await?;
1667
1668 Ok(Self { range: start..end })
1669 }
1670
1671 fn response_to_proto(
1672 code_actions: Vec<CodeAction>,
1673 _: &mut Project,
1674 _: PeerId,
1675 buffer_version: &clock::Global,
1676 _: &mut AppContext,
1677 ) -> proto::GetCodeActionsResponse {
1678 proto::GetCodeActionsResponse {
1679 actions: code_actions
1680 .iter()
1681 .map(language::proto::serialize_code_action)
1682 .collect(),
1683 version: serialize_version(&buffer_version),
1684 }
1685 }
1686
1687 async fn response_from_proto(
1688 self,
1689 message: proto::GetCodeActionsResponse,
1690 _: ModelHandle<Project>,
1691 buffer: ModelHandle<Buffer>,
1692 mut cx: AsyncAppContext,
1693 ) -> Result<Vec<CodeAction>> {
1694 buffer
1695 .update(&mut cx, |buffer, _| {
1696 buffer.wait_for_version(deserialize_version(&message.version))
1697 })
1698 .await?;
1699 message
1700 .actions
1701 .into_iter()
1702 .map(language::proto::deserialize_code_action)
1703 .collect()
1704 }
1705
1706 fn buffer_id_from_proto(message: &proto::GetCodeActions) -> u64 {
1707 message.buffer_id
1708 }
1709}
1710
1711#[async_trait(?Send)]
1712impl LspCommand for OnTypeFormatting {
1713 type Response = Option<Transaction>;
1714 type LspRequest = lsp::request::OnTypeFormatting;
1715 type ProtoRequest = proto::OnTypeFormatting;
1716
1717 fn check_capabilities(&self, server_capabilities: &lsp::ServerCapabilities) -> bool {
1718 let Some(on_type_formatting_options) =
1719 &server_capabilities.document_on_type_formatting_provider
1720 else {
1721 return false;
1722 };
1723 on_type_formatting_options
1724 .first_trigger_character
1725 .contains(&self.trigger)
1726 || on_type_formatting_options
1727 .more_trigger_character
1728 .iter()
1729 .flatten()
1730 .any(|chars| chars.contains(&self.trigger))
1731 }
1732
1733 fn to_lsp(
1734 &self,
1735 path: &Path,
1736 _: &Buffer,
1737 _: &Arc<LanguageServer>,
1738 _: &AppContext,
1739 ) -> lsp::DocumentOnTypeFormattingParams {
1740 lsp::DocumentOnTypeFormattingParams {
1741 text_document_position: lsp::TextDocumentPositionParams::new(
1742 lsp::TextDocumentIdentifier::new(lsp::Url::from_file_path(path).unwrap()),
1743 point_to_lsp(self.position),
1744 ),
1745 ch: self.trigger.clone(),
1746 options: lsp_formatting_options(self.options.tab_size),
1747 }
1748 }
1749
1750 async fn response_from_lsp(
1751 self,
1752 message: Option<Vec<lsp::TextEdit>>,
1753 project: ModelHandle<Project>,
1754 buffer: ModelHandle<Buffer>,
1755 server_id: LanguageServerId,
1756 mut cx: AsyncAppContext,
1757 ) -> Result<Option<Transaction>> {
1758 if let Some(edits) = message {
1759 let (lsp_adapter, lsp_server) =
1760 language_server_for_buffer(&project, &buffer, server_id, &mut cx)?;
1761 Project::deserialize_edits(
1762 project,
1763 buffer,
1764 edits,
1765 self.push_to_history,
1766 lsp_adapter,
1767 lsp_server,
1768 &mut cx,
1769 )
1770 .await
1771 } else {
1772 Ok(None)
1773 }
1774 }
1775
1776 fn to_proto(&self, project_id: u64, buffer: &Buffer) -> proto::OnTypeFormatting {
1777 proto::OnTypeFormatting {
1778 project_id,
1779 buffer_id: buffer.remote_id(),
1780 position: Some(language::proto::serialize_anchor(
1781 &buffer.anchor_before(self.position),
1782 )),
1783 trigger: self.trigger.clone(),
1784 version: serialize_version(&buffer.version()),
1785 }
1786 }
1787
1788 async fn from_proto(
1789 message: proto::OnTypeFormatting,
1790 _: ModelHandle<Project>,
1791 buffer: ModelHandle<Buffer>,
1792 mut cx: AsyncAppContext,
1793 ) -> Result<Self> {
1794 let position = message
1795 .position
1796 .and_then(deserialize_anchor)
1797 .ok_or_else(|| anyhow!("invalid position"))?;
1798 buffer
1799 .update(&mut cx, |buffer, _| {
1800 buffer.wait_for_version(deserialize_version(&message.version))
1801 })
1802 .await?;
1803
1804 let tab_size = buffer.read_with(&cx, |buffer, cx| {
1805 language_settings(buffer.language(), buffer.file(), cx).tab_size
1806 });
1807
1808 Ok(Self {
1809 position: buffer.read_with(&cx, |buffer, _| position.to_point_utf16(buffer)),
1810 trigger: message.trigger.clone(),
1811 options: lsp_formatting_options(tab_size.get()).into(),
1812 push_to_history: false,
1813 })
1814 }
1815
1816 fn response_to_proto(
1817 response: Option<Transaction>,
1818 _: &mut Project,
1819 _: PeerId,
1820 _: &clock::Global,
1821 _: &mut AppContext,
1822 ) -> proto::OnTypeFormattingResponse {
1823 proto::OnTypeFormattingResponse {
1824 transaction: response
1825 .map(|transaction| language::proto::serialize_transaction(&transaction)),
1826 }
1827 }
1828
1829 async fn response_from_proto(
1830 self,
1831 message: proto::OnTypeFormattingResponse,
1832 _: ModelHandle<Project>,
1833 _: ModelHandle<Buffer>,
1834 _: AsyncAppContext,
1835 ) -> Result<Option<Transaction>> {
1836 let Some(transaction) = message.transaction else {
1837 return Ok(None);
1838 };
1839 Ok(Some(language::proto::deserialize_transaction(transaction)?))
1840 }
1841
1842 fn buffer_id_from_proto(message: &proto::OnTypeFormatting) -> u64 {
1843 message.buffer_id
1844 }
1845}
1846
1847impl InlayHints {
1848 pub async fn lsp_to_project_hint(
1849 lsp_hint: lsp::InlayHint,
1850 buffer_handle: &ModelHandle<Buffer>,
1851 server_id: LanguageServerId,
1852 resolve_state: ResolveState,
1853 force_no_type_left_padding: bool,
1854 cx: &mut AsyncAppContext,
1855 ) -> anyhow::Result<InlayHint> {
1856 let kind = lsp_hint.kind.and_then(|kind| match kind {
1857 lsp::InlayHintKind::TYPE => Some(InlayHintKind::Type),
1858 lsp::InlayHintKind::PARAMETER => Some(InlayHintKind::Parameter),
1859 _ => None,
1860 });
1861
1862 let position = cx.update(|cx| {
1863 let buffer = buffer_handle.read(cx);
1864 let position = buffer.clip_point_utf16(point_from_lsp(lsp_hint.position), Bias::Left);
1865 if kind == Some(InlayHintKind::Parameter) {
1866 buffer.anchor_before(position)
1867 } else {
1868 buffer.anchor_after(position)
1869 }
1870 });
1871 let label = Self::lsp_inlay_label_to_project(lsp_hint.label, server_id)
1872 .await
1873 .context("lsp to project inlay hint conversion")?;
1874 let padding_left = if force_no_type_left_padding && kind == Some(InlayHintKind::Type) {
1875 false
1876 } else {
1877 lsp_hint.padding_left.unwrap_or(false)
1878 };
1879
1880 Ok(InlayHint {
1881 position,
1882 padding_left,
1883 padding_right: lsp_hint.padding_right.unwrap_or(false),
1884 label,
1885 kind,
1886 tooltip: lsp_hint.tooltip.map(|tooltip| match tooltip {
1887 lsp::InlayHintTooltip::String(s) => InlayHintTooltip::String(s),
1888 lsp::InlayHintTooltip::MarkupContent(markup_content) => {
1889 InlayHintTooltip::MarkupContent(MarkupContent {
1890 kind: match markup_content.kind {
1891 lsp::MarkupKind::PlainText => HoverBlockKind::PlainText,
1892 lsp::MarkupKind::Markdown => HoverBlockKind::Markdown,
1893 },
1894 value: markup_content.value,
1895 })
1896 }
1897 }),
1898 resolve_state,
1899 })
1900 }
1901
1902 async fn lsp_inlay_label_to_project(
1903 lsp_label: lsp::InlayHintLabel,
1904 server_id: LanguageServerId,
1905 ) -> anyhow::Result<InlayHintLabel> {
1906 let label = match lsp_label {
1907 lsp::InlayHintLabel::String(s) => InlayHintLabel::String(s),
1908 lsp::InlayHintLabel::LabelParts(lsp_parts) => {
1909 let mut parts = Vec::with_capacity(lsp_parts.len());
1910 for lsp_part in lsp_parts {
1911 parts.push(InlayHintLabelPart {
1912 value: lsp_part.value,
1913 tooltip: lsp_part.tooltip.map(|tooltip| match tooltip {
1914 lsp::InlayHintLabelPartTooltip::String(s) => {
1915 InlayHintLabelPartTooltip::String(s)
1916 }
1917 lsp::InlayHintLabelPartTooltip::MarkupContent(markup_content) => {
1918 InlayHintLabelPartTooltip::MarkupContent(MarkupContent {
1919 kind: match markup_content.kind {
1920 lsp::MarkupKind::PlainText => HoverBlockKind::PlainText,
1921 lsp::MarkupKind::Markdown => HoverBlockKind::Markdown,
1922 },
1923 value: markup_content.value,
1924 })
1925 }
1926 }),
1927 location: Some(server_id).zip(lsp_part.location),
1928 });
1929 }
1930 InlayHintLabel::LabelParts(parts)
1931 }
1932 };
1933
1934 Ok(label)
1935 }
1936
1937 pub fn project_to_proto_hint(response_hint: InlayHint) -> proto::InlayHint {
1938 let (state, lsp_resolve_state) = match response_hint.resolve_state {
1939 ResolveState::Resolved => (0, None),
1940 ResolveState::CanResolve(server_id, resolve_data) => (
1941 1,
1942 resolve_data
1943 .map(|json_data| {
1944 serde_json::to_string(&json_data)
1945 .expect("failed to serialize resolve json data")
1946 })
1947 .map(|value| proto::resolve_state::LspResolveState {
1948 server_id: server_id.0 as u64,
1949 value,
1950 }),
1951 ),
1952 ResolveState::Resolving => (2, None),
1953 };
1954 let resolve_state = Some(proto::ResolveState {
1955 state,
1956 lsp_resolve_state,
1957 });
1958 proto::InlayHint {
1959 position: Some(language::proto::serialize_anchor(&response_hint.position)),
1960 padding_left: response_hint.padding_left,
1961 padding_right: response_hint.padding_right,
1962 label: Some(proto::InlayHintLabel {
1963 label: Some(match response_hint.label {
1964 InlayHintLabel::String(s) => proto::inlay_hint_label::Label::Value(s),
1965 InlayHintLabel::LabelParts(label_parts) => {
1966 proto::inlay_hint_label::Label::LabelParts(proto::InlayHintLabelParts {
1967 parts: label_parts.into_iter().map(|label_part| {
1968 let location_url = label_part.location.as_ref().map(|(_, location)| location.uri.to_string());
1969 let location_range_start = label_part.location.as_ref().map(|(_, location)| point_from_lsp(location.range.start).0).map(|point| proto::PointUtf16 { row: point.row, column: point.column });
1970 let location_range_end = label_part.location.as_ref().map(|(_, location)| point_from_lsp(location.range.end).0).map(|point| proto::PointUtf16 { row: point.row, column: point.column });
1971 proto::InlayHintLabelPart {
1972 value: label_part.value,
1973 tooltip: label_part.tooltip.map(|tooltip| {
1974 let proto_tooltip = match tooltip {
1975 InlayHintLabelPartTooltip::String(s) => proto::inlay_hint_label_part_tooltip::Content::Value(s),
1976 InlayHintLabelPartTooltip::MarkupContent(markup_content) => proto::inlay_hint_label_part_tooltip::Content::MarkupContent(proto::MarkupContent {
1977 is_markdown: markup_content.kind == HoverBlockKind::Markdown,
1978 value: markup_content.value,
1979 }),
1980 };
1981 proto::InlayHintLabelPartTooltip {content: Some(proto_tooltip)}
1982 }),
1983 location_url,
1984 location_range_start,
1985 location_range_end,
1986 language_server_id: label_part.location.as_ref().map(|(server_id, _)| server_id.0 as u64),
1987 }}).collect()
1988 })
1989 }
1990 }),
1991 }),
1992 kind: response_hint.kind.map(|kind| kind.name().to_string()),
1993 tooltip: response_hint.tooltip.map(|response_tooltip| {
1994 let proto_tooltip = match response_tooltip {
1995 InlayHintTooltip::String(s) => proto::inlay_hint_tooltip::Content::Value(s),
1996 InlayHintTooltip::MarkupContent(markup_content) => {
1997 proto::inlay_hint_tooltip::Content::MarkupContent(proto::MarkupContent {
1998 is_markdown: markup_content.kind == HoverBlockKind::Markdown,
1999 value: markup_content.value,
2000 })
2001 }
2002 };
2003 proto::InlayHintTooltip {
2004 content: Some(proto_tooltip),
2005 }
2006 }),
2007 resolve_state,
2008 }
2009 }
2010
2011 pub fn proto_to_project_hint(message_hint: proto::InlayHint) -> anyhow::Result<InlayHint> {
2012 let resolve_state = message_hint.resolve_state.as_ref().unwrap_or_else(|| {
2013 panic!("incorrect proto inlay hint message: no resolve state in hint {message_hint:?}",)
2014 });
2015 let resolve_state_data = resolve_state
2016 .lsp_resolve_state.as_ref()
2017 .map(|lsp_resolve_state| {
2018 serde_json::from_str::<Option<lsp::LSPAny>>(&lsp_resolve_state.value)
2019 .with_context(|| format!("incorrect proto inlay hint message: non-json resolve state {lsp_resolve_state:?}"))
2020 .map(|state| (LanguageServerId(lsp_resolve_state.server_id as usize), state))
2021 })
2022 .transpose()?;
2023 let resolve_state = match resolve_state.state {
2024 0 => ResolveState::Resolved,
2025 1 => {
2026 let (server_id, lsp_resolve_state) = resolve_state_data.with_context(|| {
2027 format!(
2028 "No lsp resolve data for the hint that can be resolved: {message_hint:?}"
2029 )
2030 })?;
2031 ResolveState::CanResolve(server_id, lsp_resolve_state)
2032 }
2033 2 => ResolveState::Resolving,
2034 invalid => {
2035 anyhow::bail!("Unexpected resolve state {invalid} for hint {message_hint:?}")
2036 }
2037 };
2038 Ok(InlayHint {
2039 position: message_hint
2040 .position
2041 .and_then(language::proto::deserialize_anchor)
2042 .context("invalid position")?,
2043 label: match message_hint
2044 .label
2045 .and_then(|label| label.label)
2046 .context("missing label")?
2047 {
2048 proto::inlay_hint_label::Label::Value(s) => InlayHintLabel::String(s),
2049 proto::inlay_hint_label::Label::LabelParts(parts) => {
2050 let mut label_parts = Vec::new();
2051 for part in parts.parts {
2052 label_parts.push(InlayHintLabelPart {
2053 value: part.value,
2054 tooltip: part.tooltip.map(|tooltip| match tooltip.content {
2055 Some(proto::inlay_hint_label_part_tooltip::Content::Value(s)) => {
2056 InlayHintLabelPartTooltip::String(s)
2057 }
2058 Some(
2059 proto::inlay_hint_label_part_tooltip::Content::MarkupContent(
2060 markup_content,
2061 ),
2062 ) => InlayHintLabelPartTooltip::MarkupContent(MarkupContent {
2063 kind: if markup_content.is_markdown {
2064 HoverBlockKind::Markdown
2065 } else {
2066 HoverBlockKind::PlainText
2067 },
2068 value: markup_content.value,
2069 }),
2070 None => InlayHintLabelPartTooltip::String(String::new()),
2071 }),
2072 location: {
2073 match part
2074 .location_url
2075 .zip(
2076 part.location_range_start.and_then(|start| {
2077 Some(start..part.location_range_end?)
2078 }),
2079 )
2080 .zip(part.language_server_id)
2081 {
2082 Some(((uri, range), server_id)) => Some((
2083 LanguageServerId(server_id as usize),
2084 lsp::Location {
2085 uri: lsp::Url::parse(&uri)
2086 .context("invalid uri in hint part {part:?}")?,
2087 range: lsp::Range::new(
2088 point_to_lsp(PointUtf16::new(
2089 range.start.row,
2090 range.start.column,
2091 )),
2092 point_to_lsp(PointUtf16::new(
2093 range.end.row,
2094 range.end.column,
2095 )),
2096 ),
2097 },
2098 )),
2099 None => None,
2100 }
2101 },
2102 });
2103 }
2104
2105 InlayHintLabel::LabelParts(label_parts)
2106 }
2107 },
2108 padding_left: message_hint.padding_left,
2109 padding_right: message_hint.padding_right,
2110 kind: message_hint
2111 .kind
2112 .as_deref()
2113 .and_then(InlayHintKind::from_name),
2114 tooltip: message_hint.tooltip.and_then(|tooltip| {
2115 Some(match tooltip.content? {
2116 proto::inlay_hint_tooltip::Content::Value(s) => InlayHintTooltip::String(s),
2117 proto::inlay_hint_tooltip::Content::MarkupContent(markup_content) => {
2118 InlayHintTooltip::MarkupContent(MarkupContent {
2119 kind: if markup_content.is_markdown {
2120 HoverBlockKind::Markdown
2121 } else {
2122 HoverBlockKind::PlainText
2123 },
2124 value: markup_content.value,
2125 })
2126 }
2127 })
2128 }),
2129 resolve_state,
2130 })
2131 }
2132
2133 pub fn project_to_lsp_hint(hint: InlayHint, snapshot: &BufferSnapshot) -> lsp::InlayHint {
2134 lsp::InlayHint {
2135 position: point_to_lsp(hint.position.to_point_utf16(snapshot)),
2136 kind: hint.kind.map(|kind| match kind {
2137 InlayHintKind::Type => lsp::InlayHintKind::TYPE,
2138 InlayHintKind::Parameter => lsp::InlayHintKind::PARAMETER,
2139 }),
2140 text_edits: None,
2141 tooltip: hint.tooltip.and_then(|tooltip| {
2142 Some(match tooltip {
2143 InlayHintTooltip::String(s) => lsp::InlayHintTooltip::String(s),
2144 InlayHintTooltip::MarkupContent(markup_content) => {
2145 lsp::InlayHintTooltip::MarkupContent(lsp::MarkupContent {
2146 kind: match markup_content.kind {
2147 HoverBlockKind::PlainText => lsp::MarkupKind::PlainText,
2148 HoverBlockKind::Markdown => lsp::MarkupKind::Markdown,
2149 HoverBlockKind::Code { .. } => return None,
2150 },
2151 value: markup_content.value,
2152 })
2153 }
2154 })
2155 }),
2156 label: match hint.label {
2157 InlayHintLabel::String(s) => lsp::InlayHintLabel::String(s),
2158 InlayHintLabel::LabelParts(label_parts) => lsp::InlayHintLabel::LabelParts(
2159 label_parts
2160 .into_iter()
2161 .map(|part| lsp::InlayHintLabelPart {
2162 value: part.value,
2163 tooltip: part.tooltip.and_then(|tooltip| {
2164 Some(match tooltip {
2165 InlayHintLabelPartTooltip::String(s) => {
2166 lsp::InlayHintLabelPartTooltip::String(s)
2167 }
2168 InlayHintLabelPartTooltip::MarkupContent(markup_content) => {
2169 lsp::InlayHintLabelPartTooltip::MarkupContent(
2170 lsp::MarkupContent {
2171 kind: match markup_content.kind {
2172 HoverBlockKind::PlainText => {
2173 lsp::MarkupKind::PlainText
2174 }
2175 HoverBlockKind::Markdown => {
2176 lsp::MarkupKind::Markdown
2177 }
2178 HoverBlockKind::Code { .. } => return None,
2179 },
2180 value: markup_content.value,
2181 },
2182 )
2183 }
2184 })
2185 }),
2186 location: part.location.map(|(_, location)| location),
2187 command: None,
2188 })
2189 .collect(),
2190 ),
2191 },
2192 padding_left: Some(hint.padding_left),
2193 padding_right: Some(hint.padding_right),
2194 data: match hint.resolve_state {
2195 ResolveState::CanResolve(_, data) => data,
2196 ResolveState::Resolving | ResolveState::Resolved => None,
2197 },
2198 }
2199 }
2200
2201 pub fn can_resolve_inlays(capabilities: &ServerCapabilities) -> bool {
2202 capabilities
2203 .inlay_hint_provider
2204 .as_ref()
2205 .and_then(|options| match options {
2206 OneOf::Left(_is_supported) => None,
2207 OneOf::Right(capabilities) => match capabilities {
2208 lsp::InlayHintServerCapabilities::Options(o) => o.resolve_provider,
2209 lsp::InlayHintServerCapabilities::RegistrationOptions(o) => {
2210 o.inlay_hint_options.resolve_provider
2211 }
2212 },
2213 })
2214 .unwrap_or(false)
2215 }
2216}
2217
2218#[async_trait(?Send)]
2219impl LspCommand for InlayHints {
2220 type Response = Vec<InlayHint>;
2221 type LspRequest = lsp::InlayHintRequest;
2222 type ProtoRequest = proto::InlayHints;
2223
2224 fn check_capabilities(&self, server_capabilities: &lsp::ServerCapabilities) -> bool {
2225 let Some(inlay_hint_provider) = &server_capabilities.inlay_hint_provider else {
2226 return false;
2227 };
2228 match inlay_hint_provider {
2229 lsp::OneOf::Left(enabled) => *enabled,
2230 lsp::OneOf::Right(inlay_hint_capabilities) => match inlay_hint_capabilities {
2231 lsp::InlayHintServerCapabilities::Options(_) => true,
2232 lsp::InlayHintServerCapabilities::RegistrationOptions(_) => false,
2233 },
2234 }
2235 }
2236
2237 fn to_lsp(
2238 &self,
2239 path: &Path,
2240 buffer: &Buffer,
2241 _: &Arc<LanguageServer>,
2242 _: &AppContext,
2243 ) -> lsp::InlayHintParams {
2244 lsp::InlayHintParams {
2245 text_document: lsp::TextDocumentIdentifier {
2246 uri: lsp::Url::from_file_path(path).unwrap(),
2247 },
2248 range: range_to_lsp(self.range.to_point_utf16(buffer)),
2249 work_done_progress_params: Default::default(),
2250 }
2251 }
2252
2253 async fn response_from_lsp(
2254 self,
2255 message: Option<Vec<lsp::InlayHint>>,
2256 project: ModelHandle<Project>,
2257 buffer: ModelHandle<Buffer>,
2258 server_id: LanguageServerId,
2259 mut cx: AsyncAppContext,
2260 ) -> anyhow::Result<Vec<InlayHint>> {
2261 let (lsp_adapter, lsp_server) =
2262 language_server_for_buffer(&project, &buffer, server_id, &mut cx)?;
2263 // `typescript-language-server` adds padding to the left for type hints, turning
2264 // `const foo: boolean` into `const foo : boolean` which looks odd.
2265 // `rust-analyzer` does not have the padding for this case, and we have to accomodate both.
2266 //
2267 // We could trim the whole string, but being pessimistic on par with the situation above,
2268 // there might be a hint with multiple whitespaces at the end(s) which we need to display properly.
2269 // Hence let's use a heuristic first to handle the most awkward case and look for more.
2270 let force_no_type_left_padding =
2271 lsp_adapter.name.0.as_ref() == "typescript-language-server";
2272
2273 let hints = message.unwrap_or_default().into_iter().map(|lsp_hint| {
2274 let resolve_state = if InlayHints::can_resolve_inlays(lsp_server.capabilities()) {
2275 ResolveState::CanResolve(lsp_server.server_id(), lsp_hint.data.clone())
2276 } else {
2277 ResolveState::Resolved
2278 };
2279
2280 let buffer = buffer.clone();
2281 cx.spawn(|mut cx| async move {
2282 InlayHints::lsp_to_project_hint(
2283 lsp_hint,
2284 &buffer,
2285 server_id,
2286 resolve_state,
2287 force_no_type_left_padding,
2288 &mut cx,
2289 )
2290 .await
2291 })
2292 });
2293 future::join_all(hints)
2294 .await
2295 .into_iter()
2296 .collect::<anyhow::Result<_>>()
2297 .context("lsp to project inlay hints conversion")
2298 }
2299
2300 fn to_proto(&self, project_id: u64, buffer: &Buffer) -> proto::InlayHints {
2301 proto::InlayHints {
2302 project_id,
2303 buffer_id: buffer.remote_id(),
2304 start: Some(language::proto::serialize_anchor(&self.range.start)),
2305 end: Some(language::proto::serialize_anchor(&self.range.end)),
2306 version: serialize_version(&buffer.version()),
2307 }
2308 }
2309
2310 async fn from_proto(
2311 message: proto::InlayHints,
2312 _: ModelHandle<Project>,
2313 buffer: ModelHandle<Buffer>,
2314 mut cx: AsyncAppContext,
2315 ) -> Result<Self> {
2316 let start = message
2317 .start
2318 .and_then(language::proto::deserialize_anchor)
2319 .context("invalid start")?;
2320 let end = message
2321 .end
2322 .and_then(language::proto::deserialize_anchor)
2323 .context("invalid end")?;
2324 buffer
2325 .update(&mut cx, |buffer, _| {
2326 buffer.wait_for_version(deserialize_version(&message.version))
2327 })
2328 .await?;
2329
2330 Ok(Self { range: start..end })
2331 }
2332
2333 fn response_to_proto(
2334 response: Vec<InlayHint>,
2335 _: &mut Project,
2336 _: PeerId,
2337 buffer_version: &clock::Global,
2338 _: &mut AppContext,
2339 ) -> proto::InlayHintsResponse {
2340 proto::InlayHintsResponse {
2341 hints: response
2342 .into_iter()
2343 .map(|response_hint| InlayHints::project_to_proto_hint(response_hint))
2344 .collect(),
2345 version: serialize_version(buffer_version),
2346 }
2347 }
2348
2349 async fn response_from_proto(
2350 self,
2351 message: proto::InlayHintsResponse,
2352 _: ModelHandle<Project>,
2353 buffer: ModelHandle<Buffer>,
2354 mut cx: AsyncAppContext,
2355 ) -> anyhow::Result<Vec<InlayHint>> {
2356 buffer
2357 .update(&mut cx, |buffer, _| {
2358 buffer.wait_for_version(deserialize_version(&message.version))
2359 })
2360 .await?;
2361
2362 let mut hints = Vec::new();
2363 for message_hint in message.hints {
2364 hints.push(InlayHints::proto_to_project_hint(message_hint)?);
2365 }
2366
2367 Ok(hints)
2368 }
2369
2370 fn buffer_id_from_proto(message: &proto::InlayHints) -> u64 {
2371 message.buffer_id
2372 }
2373}