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