1use crate::{
2 diagnostic_set::DiagnosticEntry, CodeAction, CodeLabel, Completion, CursorShape, Diagnostic,
3 Language,
4};
5use anyhow::{anyhow, Result};
6use clock::ReplicaId;
7use lsp::{DiagnosticSeverity, LanguageServerId};
8use rpc::proto;
9use std::{ops::Range, sync::Arc};
10use text::*;
11
12pub use proto::{BufferState, Operation};
13
14pub fn serialize_fingerprint(fingerprint: RopeFingerprint) -> String {
15 fingerprint.to_hex()
16}
17
18pub fn deserialize_fingerprint(fingerprint: &str) -> Result<RopeFingerprint> {
19 RopeFingerprint::from_hex(fingerprint)
20 .map_err(|error| anyhow!("invalid fingerprint: {}", error))
21}
22
23pub fn deserialize_line_ending(message: proto::LineEnding) -> fs::LineEnding {
24 match message {
25 proto::LineEnding::Unix => fs::LineEnding::Unix,
26 proto::LineEnding::Windows => fs::LineEnding::Windows,
27 }
28}
29
30pub fn serialize_line_ending(message: fs::LineEnding) -> proto::LineEnding {
31 match message {
32 fs::LineEnding::Unix => proto::LineEnding::Unix,
33 fs::LineEnding::Windows => proto::LineEnding::Windows,
34 }
35}
36
37pub fn serialize_operation(operation: &crate::Operation) -> proto::Operation {
38 proto::Operation {
39 variant: Some(match operation {
40 crate::Operation::Buffer(text::Operation::Edit(edit)) => {
41 proto::operation::Variant::Edit(serialize_edit_operation(edit))
42 }
43
44 crate::Operation::Buffer(text::Operation::Undo {
45 undo,
46 lamport_timestamp,
47 }) => proto::operation::Variant::Undo(proto::operation::Undo {
48 replica_id: undo.id.replica_id as u32,
49 local_timestamp: undo.id.value,
50 lamport_timestamp: lamport_timestamp.value,
51 version: serialize_version(&undo.version),
52 counts: undo
53 .counts
54 .iter()
55 .map(|(edit_id, count)| proto::UndoCount {
56 replica_id: edit_id.replica_id as u32,
57 local_timestamp: edit_id.value,
58 count: *count,
59 })
60 .collect(),
61 }),
62
63 crate::Operation::UpdateSelections {
64 selections,
65 line_mode,
66 lamport_timestamp,
67 cursor_shape,
68 } => proto::operation::Variant::UpdateSelections(proto::operation::UpdateSelections {
69 replica_id: lamport_timestamp.replica_id as u32,
70 lamport_timestamp: lamport_timestamp.value,
71 selections: serialize_selections(selections),
72 line_mode: *line_mode,
73 cursor_shape: serialize_cursor_shape(cursor_shape) as i32,
74 }),
75
76 crate::Operation::UpdateDiagnostics {
77 lamport_timestamp,
78 server_id,
79 diagnostics,
80 } => proto::operation::Variant::UpdateDiagnostics(proto::UpdateDiagnostics {
81 replica_id: lamport_timestamp.replica_id as u32,
82 lamport_timestamp: lamport_timestamp.value,
83 server_id: server_id.0 as u64,
84 diagnostics: serialize_diagnostics(diagnostics.iter()),
85 }),
86
87 crate::Operation::UpdateCompletionTriggers {
88 triggers,
89 lamport_timestamp,
90 } => proto::operation::Variant::UpdateCompletionTriggers(
91 proto::operation::UpdateCompletionTriggers {
92 replica_id: lamport_timestamp.replica_id as u32,
93 lamport_timestamp: lamport_timestamp.value,
94 triggers: triggers.clone(),
95 },
96 ),
97 }),
98 }
99}
100
101pub fn serialize_edit_operation(operation: &EditOperation) -> proto::operation::Edit {
102 proto::operation::Edit {
103 replica_id: operation.timestamp.replica_id as u32,
104 local_timestamp: operation.timestamp.local,
105 lamport_timestamp: operation.timestamp.lamport,
106 version: serialize_version(&operation.version),
107 ranges: operation.ranges.iter().map(serialize_range).collect(),
108 new_text: operation
109 .new_text
110 .iter()
111 .map(|text| text.to_string())
112 .collect(),
113 }
114}
115
116pub fn serialize_undo_map_entry(
117 (edit_id, counts): (&clock::Local, &[(clock::Local, u32)]),
118) -> proto::UndoMapEntry {
119 proto::UndoMapEntry {
120 replica_id: edit_id.replica_id as u32,
121 local_timestamp: edit_id.value,
122 counts: counts
123 .iter()
124 .map(|(undo_id, count)| proto::UndoCount {
125 replica_id: undo_id.replica_id as u32,
126 local_timestamp: undo_id.value,
127 count: *count,
128 })
129 .collect(),
130 }
131}
132
133pub fn serialize_selections(selections: &Arc<[Selection<Anchor>]>) -> Vec<proto::Selection> {
134 selections.iter().map(serialize_selection).collect()
135}
136
137pub fn serialize_selection(selection: &Selection<Anchor>) -> proto::Selection {
138 proto::Selection {
139 id: selection.id as u64,
140 start: Some(proto::EditorAnchor {
141 anchor: Some(serialize_anchor(&selection.start)),
142 excerpt_id: 0,
143 }),
144 end: Some(proto::EditorAnchor {
145 anchor: Some(serialize_anchor(&selection.end)),
146 excerpt_id: 0,
147 }),
148 reversed: selection.reversed,
149 }
150}
151
152pub fn serialize_cursor_shape(cursor_shape: &CursorShape) -> proto::CursorShape {
153 match cursor_shape {
154 CursorShape::Bar => proto::CursorShape::CursorBar,
155 CursorShape::Block => proto::CursorShape::CursorBlock,
156 CursorShape::Underscore => proto::CursorShape::CursorUnderscore,
157 CursorShape::Hollow => proto::CursorShape::CursorHollow,
158 }
159}
160
161pub fn deserialize_cursor_shape(cursor_shape: proto::CursorShape) -> CursorShape {
162 match cursor_shape {
163 proto::CursorShape::CursorBar => CursorShape::Bar,
164 proto::CursorShape::CursorBlock => CursorShape::Block,
165 proto::CursorShape::CursorUnderscore => CursorShape::Underscore,
166 proto::CursorShape::CursorHollow => CursorShape::Hollow,
167 }
168}
169
170pub fn serialize_diagnostics<'a>(
171 diagnostics: impl IntoIterator<Item = &'a DiagnosticEntry<Anchor>>,
172) -> Vec<proto::Diagnostic> {
173 diagnostics
174 .into_iter()
175 .map(|entry| proto::Diagnostic {
176 start: Some(serialize_anchor(&entry.range.start)),
177 end: Some(serialize_anchor(&entry.range.end)),
178 message: entry.diagnostic.message.clone(),
179 severity: match entry.diagnostic.severity {
180 DiagnosticSeverity::ERROR => proto::diagnostic::Severity::Error,
181 DiagnosticSeverity::WARNING => proto::diagnostic::Severity::Warning,
182 DiagnosticSeverity::INFORMATION => proto::diagnostic::Severity::Information,
183 DiagnosticSeverity::HINT => proto::diagnostic::Severity::Hint,
184 _ => proto::diagnostic::Severity::None,
185 } as i32,
186 group_id: entry.diagnostic.group_id as u64,
187 is_primary: entry.diagnostic.is_primary,
188 is_valid: entry.diagnostic.is_valid,
189 code: entry.diagnostic.code.clone(),
190 is_disk_based: entry.diagnostic.is_disk_based,
191 is_unnecessary: entry.diagnostic.is_unnecessary,
192 })
193 .collect()
194}
195
196pub fn serialize_anchor(anchor: &Anchor) -> proto::Anchor {
197 proto::Anchor {
198 replica_id: anchor.timestamp.replica_id as u32,
199 local_timestamp: anchor.timestamp.value,
200 offset: anchor.offset as u64,
201 bias: match anchor.bias {
202 Bias::Left => proto::Bias::Left as i32,
203 Bias::Right => proto::Bias::Right as i32,
204 },
205 buffer_id: anchor.buffer_id,
206 }
207}
208
209pub fn deserialize_operation(message: proto::Operation) -> Result<crate::Operation> {
210 Ok(
211 match message
212 .variant
213 .ok_or_else(|| anyhow!("missing operation variant"))?
214 {
215 proto::operation::Variant::Edit(edit) => {
216 crate::Operation::Buffer(text::Operation::Edit(deserialize_edit_operation(edit)))
217 }
218 proto::operation::Variant::Undo(undo) => {
219 crate::Operation::Buffer(text::Operation::Undo {
220 lamport_timestamp: clock::Lamport {
221 replica_id: undo.replica_id as ReplicaId,
222 value: undo.lamport_timestamp,
223 },
224 undo: UndoOperation {
225 id: clock::Local {
226 replica_id: undo.replica_id as ReplicaId,
227 value: undo.local_timestamp,
228 },
229 version: deserialize_version(&undo.version),
230 counts: undo
231 .counts
232 .into_iter()
233 .map(|c| {
234 (
235 clock::Local {
236 replica_id: c.replica_id as ReplicaId,
237 value: c.local_timestamp,
238 },
239 c.count,
240 )
241 })
242 .collect(),
243 },
244 })
245 }
246 proto::operation::Variant::UpdateSelections(message) => {
247 let selections = message
248 .selections
249 .into_iter()
250 .filter_map(|selection| {
251 Some(Selection {
252 id: selection.id as usize,
253 start: deserialize_anchor(selection.start?.anchor?)?,
254 end: deserialize_anchor(selection.end?.anchor?)?,
255 reversed: selection.reversed,
256 goal: SelectionGoal::None,
257 })
258 })
259 .collect::<Vec<_>>();
260
261 crate::Operation::UpdateSelections {
262 lamport_timestamp: clock::Lamport {
263 replica_id: message.replica_id as ReplicaId,
264 value: message.lamport_timestamp,
265 },
266 selections: Arc::from(selections),
267 line_mode: message.line_mode,
268 cursor_shape: deserialize_cursor_shape(
269 proto::CursorShape::from_i32(message.cursor_shape)
270 .ok_or_else(|| anyhow!("Missing cursor shape"))?,
271 ),
272 }
273 }
274 proto::operation::Variant::UpdateDiagnostics(message) => {
275 crate::Operation::UpdateDiagnostics {
276 lamport_timestamp: clock::Lamport {
277 replica_id: message.replica_id as ReplicaId,
278 value: message.lamport_timestamp,
279 },
280 server_id: LanguageServerId(message.server_id as usize),
281 diagnostics: deserialize_diagnostics(message.diagnostics),
282 }
283 }
284 proto::operation::Variant::UpdateCompletionTriggers(message) => {
285 crate::Operation::UpdateCompletionTriggers {
286 triggers: message.triggers,
287 lamport_timestamp: clock::Lamport {
288 replica_id: message.replica_id as ReplicaId,
289 value: message.lamport_timestamp,
290 },
291 }
292 }
293 },
294 )
295}
296
297pub fn deserialize_edit_operation(edit: proto::operation::Edit) -> EditOperation {
298 EditOperation {
299 timestamp: InsertionTimestamp {
300 replica_id: edit.replica_id as ReplicaId,
301 local: edit.local_timestamp,
302 lamport: edit.lamport_timestamp,
303 },
304 version: deserialize_version(&edit.version),
305 ranges: edit.ranges.into_iter().map(deserialize_range).collect(),
306 new_text: edit.new_text.into_iter().map(Arc::from).collect(),
307 }
308}
309
310pub fn deserialize_undo_map_entry(
311 entry: proto::UndoMapEntry,
312) -> (clock::Local, Vec<(clock::Local, u32)>) {
313 (
314 clock::Local {
315 replica_id: entry.replica_id as u16,
316 value: entry.local_timestamp,
317 },
318 entry
319 .counts
320 .into_iter()
321 .map(|undo_count| {
322 (
323 clock::Local {
324 replica_id: undo_count.replica_id as u16,
325 value: undo_count.local_timestamp,
326 },
327 undo_count.count,
328 )
329 })
330 .collect(),
331 )
332}
333
334pub fn deserialize_selections(selections: Vec<proto::Selection>) -> Arc<[Selection<Anchor>]> {
335 Arc::from(
336 selections
337 .into_iter()
338 .filter_map(deserialize_selection)
339 .collect::<Vec<_>>(),
340 )
341}
342
343pub fn deserialize_selection(selection: proto::Selection) -> Option<Selection<Anchor>> {
344 Some(Selection {
345 id: selection.id as usize,
346 start: deserialize_anchor(selection.start?.anchor?)?,
347 end: deserialize_anchor(selection.end?.anchor?)?,
348 reversed: selection.reversed,
349 goal: SelectionGoal::None,
350 })
351}
352
353pub fn deserialize_diagnostics(
354 diagnostics: Vec<proto::Diagnostic>,
355) -> Arc<[DiagnosticEntry<Anchor>]> {
356 diagnostics
357 .into_iter()
358 .filter_map(|diagnostic| {
359 Some(DiagnosticEntry {
360 range: deserialize_anchor(diagnostic.start?)?..deserialize_anchor(diagnostic.end?)?,
361 diagnostic: Diagnostic {
362 severity: match proto::diagnostic::Severity::from_i32(diagnostic.severity)? {
363 proto::diagnostic::Severity::Error => DiagnosticSeverity::ERROR,
364 proto::diagnostic::Severity::Warning => DiagnosticSeverity::WARNING,
365 proto::diagnostic::Severity::Information => DiagnosticSeverity::INFORMATION,
366 proto::diagnostic::Severity::Hint => DiagnosticSeverity::HINT,
367 proto::diagnostic::Severity::None => return None,
368 },
369 message: diagnostic.message,
370 group_id: diagnostic.group_id as usize,
371 code: diagnostic.code,
372 is_valid: diagnostic.is_valid,
373 is_primary: diagnostic.is_primary,
374 is_disk_based: diagnostic.is_disk_based,
375 is_unnecessary: diagnostic.is_unnecessary,
376 },
377 })
378 })
379 .collect()
380}
381
382pub fn deserialize_anchor(anchor: proto::Anchor) -> Option<Anchor> {
383 Some(Anchor {
384 timestamp: clock::Local {
385 replica_id: anchor.replica_id as ReplicaId,
386 value: anchor.local_timestamp,
387 },
388 offset: anchor.offset as usize,
389 bias: match proto::Bias::from_i32(anchor.bias)? {
390 proto::Bias::Left => Bias::Left,
391 proto::Bias::Right => Bias::Right,
392 },
393 buffer_id: anchor.buffer_id,
394 })
395}
396
397pub fn lamport_timestamp_for_operation(operation: &proto::Operation) -> Option<clock::Lamport> {
398 let replica_id;
399 let value;
400 match operation.variant.as_ref()? {
401 proto::operation::Variant::Edit(op) => {
402 replica_id = op.replica_id;
403 value = op.lamport_timestamp;
404 }
405 proto::operation::Variant::Undo(op) => {
406 replica_id = op.replica_id;
407 value = op.lamport_timestamp;
408 }
409 proto::operation::Variant::UpdateDiagnostics(op) => {
410 replica_id = op.replica_id;
411 value = op.lamport_timestamp;
412 }
413 proto::operation::Variant::UpdateSelections(op) => {
414 replica_id = op.replica_id;
415 value = op.lamport_timestamp;
416 }
417 proto::operation::Variant::UpdateCompletionTriggers(op) => {
418 replica_id = op.replica_id;
419 value = op.lamport_timestamp;
420 }
421 }
422
423 Some(clock::Lamport {
424 replica_id: replica_id as ReplicaId,
425 value,
426 })
427}
428
429pub fn serialize_completion(completion: &Completion) -> proto::Completion {
430 proto::Completion {
431 old_start: Some(serialize_anchor(&completion.old_range.start)),
432 old_end: Some(serialize_anchor(&completion.old_range.end)),
433 new_text: completion.new_text.clone(),
434 lsp_completion: serde_json::to_vec(&completion.lsp_completion).unwrap(),
435 }
436}
437
438pub async fn deserialize_completion(
439 completion: proto::Completion,
440 language: Option<Arc<Language>>,
441) -> Result<Completion> {
442 let old_start = completion
443 .old_start
444 .and_then(deserialize_anchor)
445 .ok_or_else(|| anyhow!("invalid old start"))?;
446 let old_end = completion
447 .old_end
448 .and_then(deserialize_anchor)
449 .ok_or_else(|| anyhow!("invalid old end"))?;
450 let lsp_completion = serde_json::from_slice(&completion.lsp_completion)?;
451
452 let mut label = None;
453 if let Some(language) = language {
454 label = language.label_for_completion(&lsp_completion).await;
455 }
456
457 Ok(Completion {
458 old_range: old_start..old_end,
459 new_text: completion.new_text,
460 label: label.unwrap_or_else(|| {
461 CodeLabel::plain(
462 lsp_completion.label.clone(),
463 lsp_completion.filter_text.as_deref(),
464 )
465 }),
466 lsp_completion,
467 })
468}
469
470pub fn serialize_code_action(action: &CodeAction) -> proto::CodeAction {
471 proto::CodeAction {
472 server_id: action.server_id.0 as u64,
473 start: Some(serialize_anchor(&action.range.start)),
474 end: Some(serialize_anchor(&action.range.end)),
475 lsp_action: serde_json::to_vec(&action.lsp_action).unwrap(),
476 }
477}
478
479pub fn deserialize_code_action(action: proto::CodeAction) -> Result<CodeAction> {
480 let start = action
481 .start
482 .and_then(deserialize_anchor)
483 .ok_or_else(|| anyhow!("invalid start"))?;
484 let end = action
485 .end
486 .and_then(deserialize_anchor)
487 .ok_or_else(|| anyhow!("invalid end"))?;
488 let lsp_action = serde_json::from_slice(&action.lsp_action)?;
489 Ok(CodeAction {
490 server_id: LanguageServerId(action.server_id as usize),
491 range: start..end,
492 lsp_action,
493 })
494}
495
496pub fn serialize_transaction(transaction: &Transaction) -> proto::Transaction {
497 proto::Transaction {
498 id: Some(serialize_local_timestamp(transaction.id)),
499 edit_ids: transaction
500 .edit_ids
501 .iter()
502 .copied()
503 .map(serialize_local_timestamp)
504 .collect(),
505 start: serialize_version(&transaction.start),
506 }
507}
508
509pub fn deserialize_transaction(transaction: proto::Transaction) -> Result<Transaction> {
510 Ok(Transaction {
511 id: deserialize_local_timestamp(
512 transaction
513 .id
514 .ok_or_else(|| anyhow!("missing transaction id"))?,
515 ),
516 edit_ids: transaction
517 .edit_ids
518 .into_iter()
519 .map(deserialize_local_timestamp)
520 .collect(),
521 start: deserialize_version(&transaction.start),
522 })
523}
524
525pub fn serialize_local_timestamp(timestamp: clock::Local) -> proto::LocalTimestamp {
526 proto::LocalTimestamp {
527 replica_id: timestamp.replica_id as u32,
528 value: timestamp.value,
529 }
530}
531
532pub fn deserialize_local_timestamp(timestamp: proto::LocalTimestamp) -> clock::Local {
533 clock::Local {
534 replica_id: timestamp.replica_id as ReplicaId,
535 value: timestamp.value,
536 }
537}
538
539pub fn serialize_range(range: &Range<FullOffset>) -> proto::Range {
540 proto::Range {
541 start: range.start.0 as u64,
542 end: range.end.0 as u64,
543 }
544}
545
546pub fn deserialize_range(range: proto::Range) -> Range<FullOffset> {
547 FullOffset(range.start as usize)..FullOffset(range.end as usize)
548}
549
550pub fn deserialize_version(message: &[proto::VectorClockEntry]) -> clock::Global {
551 let mut version = clock::Global::new();
552 for entry in message {
553 version.observe(clock::Local {
554 replica_id: entry.replica_id as ReplicaId,
555 value: entry.timestamp,
556 });
557 }
558 version
559}
560
561pub fn serialize_version(version: &clock::Global) -> Vec<proto::VectorClockEntry> {
562 version
563 .iter()
564 .map(|entry| proto::VectorClockEntry {
565 replica_id: entry.replica_id as u32,
566 timestamp: entry.value,
567 })
568 .collect()
569}