| 1 | //! LSP JSON-RPC protocol implementation |
| 2 | //! |
| 3 | //! Handles message creation, serialization, and parsing for the Language Server Protocol. |
| 4 | //! |
| 5 | //! Note: Some request builders and parsers are for planned features. |
| 6 | #![allow(dead_code)] |
| 7 | |
| 8 | use serde::{Deserialize, Serialize}; |
| 9 | use serde_json::{json, Value}; |
| 10 | use std::sync::atomic::{AtomicI64, Ordering}; |
| 11 | |
| 12 | use super::types::{Capabilities, Position, Range}; |
| 13 | |
| 14 | /// Global request ID counter |
| 15 | static NEXT_REQUEST_ID: AtomicI64 = AtomicI64::new(1); |
| 16 | |
| 17 | /// Get the next unique request ID |
| 18 | pub fn next_request_id() -> i64 { |
| 19 | NEXT_REQUEST_ID.fetch_add(1, Ordering::SeqCst) |
| 20 | } |
| 21 | |
| 22 | /// LSP message types |
| 23 | #[derive(Debug, Clone)] |
| 24 | pub enum LspMessage { |
| 25 | Request { |
| 26 | id: i64, |
| 27 | method: String, |
| 28 | params: Option<Value>, |
| 29 | }, |
| 30 | Response { |
| 31 | id: i64, |
| 32 | result: Option<Value>, |
| 33 | error: Option<ResponseError>, |
| 34 | }, |
| 35 | Notification { |
| 36 | method: String, |
| 37 | params: Option<Value>, |
| 38 | }, |
| 39 | } |
| 40 | |
| 41 | /// LSP response error |
| 42 | #[derive(Debug, Clone, Serialize, Deserialize)] |
| 43 | pub struct ResponseError { |
| 44 | pub code: i32, |
| 45 | pub message: String, |
| 46 | pub data: Option<Value>, |
| 47 | } |
| 48 | |
| 49 | impl LspMessage { |
| 50 | /// Serialize message to JSON-RPC format with Content-Length header |
| 51 | pub fn to_string(&self) -> String { |
| 52 | let json = match self { |
| 53 | LspMessage::Request { id, method, params } => { |
| 54 | let mut obj = json!({ |
| 55 | "jsonrpc": "2.0", |
| 56 | "id": id, |
| 57 | "method": method, |
| 58 | }); |
| 59 | if let Some(p) = params { |
| 60 | obj["params"] = p.clone(); |
| 61 | } |
| 62 | obj |
| 63 | } |
| 64 | LspMessage::Response { id, result, error } => { |
| 65 | let mut obj = json!({ |
| 66 | "jsonrpc": "2.0", |
| 67 | "id": id, |
| 68 | }); |
| 69 | if let Some(r) = result { |
| 70 | obj["result"] = r.clone(); |
| 71 | } |
| 72 | if let Some(e) = error { |
| 73 | obj["error"] = serde_json::to_value(e).unwrap_or(Value::Null); |
| 74 | } |
| 75 | obj |
| 76 | } |
| 77 | LspMessage::Notification { method, params } => { |
| 78 | let mut obj = json!({ |
| 79 | "jsonrpc": "2.0", |
| 80 | "method": method, |
| 81 | }); |
| 82 | if let Some(p) = params { |
| 83 | obj["params"] = p.clone(); |
| 84 | } |
| 85 | obj |
| 86 | } |
| 87 | }; |
| 88 | |
| 89 | let content = serde_json::to_string(&json).unwrap_or_default(); |
| 90 | format!("Content-Length: {}\r\n\r\n{}", content.len(), content) |
| 91 | } |
| 92 | |
| 93 | /// Parse a JSON-RPC message from JSON value |
| 94 | pub fn from_json(value: Value) -> Option<Self> { |
| 95 | let obj = value.as_object()?; |
| 96 | |
| 97 | // Check for response (has id and result/error) |
| 98 | if let Some(id) = obj.get("id").and_then(|v| v.as_i64()) { |
| 99 | if obj.contains_key("method") { |
| 100 | // Request |
| 101 | let method = obj.get("method")?.as_str()?.to_string(); |
| 102 | let params = obj.get("params").cloned(); |
| 103 | Some(LspMessage::Request { id, method, params }) |
| 104 | } else { |
| 105 | // Response |
| 106 | let result = obj.get("result").cloned(); |
| 107 | let error = obj |
| 108 | .get("error") |
| 109 | .and_then(|e| serde_json::from_value(e.clone()).ok()); |
| 110 | Some(LspMessage::Response { id, result, error }) |
| 111 | } |
| 112 | } else if let Some(method) = obj.get("method").and_then(|v| v.as_str()) { |
| 113 | // Notification (no id) |
| 114 | let params = obj.get("params").cloned(); |
| 115 | Some(LspMessage::Notification { |
| 116 | method: method.to_string(), |
| 117 | params, |
| 118 | }) |
| 119 | } else { |
| 120 | None |
| 121 | } |
| 122 | } |
| 123 | } |
| 124 | |
| 125 | // ============================================================================ |
| 126 | // Request Builders |
| 127 | // ============================================================================ |
| 128 | |
| 129 | /// Create initialize request |
| 130 | pub fn create_initialize_request( |
| 131 | id: i64, |
| 132 | workspace_root: &str, |
| 133 | client_name: &str, |
| 134 | ) -> LspMessage { |
| 135 | let capabilities = json!({ |
| 136 | "textDocument": { |
| 137 | "completion": { |
| 138 | "completionItem": { |
| 139 | "snippetSupport": false, |
| 140 | "documentationFormat": ["plaintext", "markdown"], |
| 141 | "deprecatedSupport": true, |
| 142 | "labelDetailsSupport": true |
| 143 | }, |
| 144 | "contextSupport": true |
| 145 | }, |
| 146 | "hover": { |
| 147 | "contentFormat": ["plaintext", "markdown"] |
| 148 | }, |
| 149 | "definition": { |
| 150 | "linkSupport": true |
| 151 | }, |
| 152 | "references": {}, |
| 153 | "documentSymbol": { |
| 154 | "hierarchicalDocumentSymbolSupport": true |
| 155 | }, |
| 156 | "codeAction": { |
| 157 | "codeActionLiteralSupport": { |
| 158 | "codeActionKind": { |
| 159 | "valueSet": [ |
| 160 | "quickfix", |
| 161 | "refactor", |
| 162 | "refactor.extract", |
| 163 | "refactor.inline", |
| 164 | "refactor.rewrite", |
| 165 | "source", |
| 166 | "source.organizeImports" |
| 167 | ] |
| 168 | } |
| 169 | } |
| 170 | }, |
| 171 | "rename": { |
| 172 | "prepareSupport": true |
| 173 | }, |
| 174 | "publishDiagnostics": { |
| 175 | "relatedInformation": true, |
| 176 | "tagSupport": { |
| 177 | "valueSet": [1, 2] |
| 178 | } |
| 179 | }, |
| 180 | "signatureHelp": { |
| 181 | "signatureInformation": { |
| 182 | "documentationFormat": ["plaintext", "markdown"], |
| 183 | "parameterInformation": { |
| 184 | "labelOffsetSupport": true |
| 185 | } |
| 186 | } |
| 187 | }, |
| 188 | "formatting": {}, |
| 189 | "synchronization": { |
| 190 | "didSave": true, |
| 191 | "willSave": false, |
| 192 | "willSaveWaitUntil": false |
| 193 | } |
| 194 | }, |
| 195 | "workspace": { |
| 196 | // Note: workspaceFolders must be false for pyright to send diagnostics |
| 197 | // after didOpen. With true, pyright waits for workspace folder change events. |
| 198 | "workspaceFolders": false, |
| 199 | "symbol": { |
| 200 | "symbolKind": { |
| 201 | "valueSet": (1..=26).collect::<Vec<i32>>() |
| 202 | } |
| 203 | }, |
| 204 | "applyEdit": true, |
| 205 | "workspaceEdit": { |
| 206 | "documentChanges": true |
| 207 | } |
| 208 | } |
| 209 | }); |
| 210 | |
| 211 | let params = json!({ |
| 212 | "processId": std::process::id(), |
| 213 | "clientInfo": { |
| 214 | "name": client_name, |
| 215 | "version": env!("CARGO_PKG_VERSION") |
| 216 | }, |
| 217 | "rootUri": format!("file://{}", workspace_root), |
| 218 | "rootPath": workspace_root, |
| 219 | "capabilities": capabilities, |
| 220 | "workspaceFolders": [{ |
| 221 | "uri": format!("file://{}", workspace_root), |
| 222 | "name": workspace_root.rsplit('/').next().unwrap_or(workspace_root) |
| 223 | }] |
| 224 | }); |
| 225 | |
| 226 | LspMessage::Request { |
| 227 | id, |
| 228 | method: "initialize".to_string(), |
| 229 | params: Some(params), |
| 230 | } |
| 231 | } |
| 232 | |
| 233 | /// Create initialized notification (sent after initialize response) |
| 234 | pub fn create_initialized_notification() -> LspMessage { |
| 235 | LspMessage::Notification { |
| 236 | method: "initialized".to_string(), |
| 237 | params: Some(json!({})), |
| 238 | } |
| 239 | } |
| 240 | |
| 241 | /// Create shutdown request |
| 242 | pub fn create_shutdown_request(id: i64) -> LspMessage { |
| 243 | LspMessage::Request { |
| 244 | id, |
| 245 | method: "shutdown".to_string(), |
| 246 | params: None, |
| 247 | } |
| 248 | } |
| 249 | |
| 250 | /// Create exit notification |
| 251 | pub fn create_exit_notification() -> LspMessage { |
| 252 | LspMessage::Notification { |
| 253 | method: "exit".to_string(), |
| 254 | params: None, |
| 255 | } |
| 256 | } |
| 257 | |
| 258 | // ============================================================================ |
| 259 | // Document Synchronization |
| 260 | // ============================================================================ |
| 261 | |
| 262 | /// Create textDocument/didOpen notification |
| 263 | pub fn create_did_open_notification(uri: &str, language_id: &str, version: i32, text: &str) -> LspMessage { |
| 264 | LspMessage::Notification { |
| 265 | method: "textDocument/didOpen".to_string(), |
| 266 | params: Some(json!({ |
| 267 | "textDocument": { |
| 268 | "uri": uri, |
| 269 | "languageId": language_id, |
| 270 | "version": version, |
| 271 | "text": text |
| 272 | } |
| 273 | })), |
| 274 | } |
| 275 | } |
| 276 | |
| 277 | /// Create textDocument/didChange notification (full sync) |
| 278 | pub fn create_did_change_notification(uri: &str, version: i32, text: &str) -> LspMessage { |
| 279 | LspMessage::Notification { |
| 280 | method: "textDocument/didChange".to_string(), |
| 281 | params: Some(json!({ |
| 282 | "textDocument": { |
| 283 | "uri": uri, |
| 284 | "version": version |
| 285 | }, |
| 286 | "contentChanges": [{ |
| 287 | "text": text |
| 288 | }] |
| 289 | })), |
| 290 | } |
| 291 | } |
| 292 | |
| 293 | /// Create textDocument/didSave notification |
| 294 | pub fn create_did_save_notification(uri: &str, text: Option<&str>) -> LspMessage { |
| 295 | let mut params = json!({ |
| 296 | "textDocument": { |
| 297 | "uri": uri |
| 298 | } |
| 299 | }); |
| 300 | if let Some(t) = text { |
| 301 | params["text"] = json!(t); |
| 302 | } |
| 303 | LspMessage::Notification { |
| 304 | method: "textDocument/didSave".to_string(), |
| 305 | params: Some(params), |
| 306 | } |
| 307 | } |
| 308 | |
| 309 | /// Create textDocument/didClose notification |
| 310 | pub fn create_did_close_notification(uri: &str) -> LspMessage { |
| 311 | LspMessage::Notification { |
| 312 | method: "textDocument/didClose".to_string(), |
| 313 | params: Some(json!({ |
| 314 | "textDocument": { |
| 315 | "uri": uri |
| 316 | } |
| 317 | })), |
| 318 | } |
| 319 | } |
| 320 | |
| 321 | // ============================================================================ |
| 322 | // Language Features |
| 323 | // ============================================================================ |
| 324 | |
| 325 | fn position_params(uri: &str, pos: Position) -> Value { |
| 326 | json!({ |
| 327 | "textDocument": { "uri": uri }, |
| 328 | "position": { "line": pos.line, "character": pos.character } |
| 329 | }) |
| 330 | } |
| 331 | |
| 332 | /// Create textDocument/completion request |
| 333 | pub fn create_completion_request(id: i64, uri: &str, pos: Position) -> LspMessage { |
| 334 | let mut params = position_params(uri, pos); |
| 335 | params["context"] = json!({ "triggerKind": 1 }); // Invoked |
| 336 | LspMessage::Request { |
| 337 | id, |
| 338 | method: "textDocument/completion".to_string(), |
| 339 | params: Some(params), |
| 340 | } |
| 341 | } |
| 342 | |
| 343 | /// Create textDocument/hover request |
| 344 | pub fn create_hover_request(id: i64, uri: &str, pos: Position) -> LspMessage { |
| 345 | LspMessage::Request { |
| 346 | id, |
| 347 | method: "textDocument/hover".to_string(), |
| 348 | params: Some(position_params(uri, pos)), |
| 349 | } |
| 350 | } |
| 351 | |
| 352 | /// Create textDocument/definition request |
| 353 | pub fn create_definition_request(id: i64, uri: &str, pos: Position) -> LspMessage { |
| 354 | LspMessage::Request { |
| 355 | id, |
| 356 | method: "textDocument/definition".to_string(), |
| 357 | params: Some(position_params(uri, pos)), |
| 358 | } |
| 359 | } |
| 360 | |
| 361 | /// Create textDocument/references request |
| 362 | pub fn create_references_request( |
| 363 | id: i64, |
| 364 | uri: &str, |
| 365 | pos: Position, |
| 366 | include_declaration: bool, |
| 367 | ) -> LspMessage { |
| 368 | let mut params = position_params(uri, pos); |
| 369 | params["context"] = json!({ "includeDeclaration": include_declaration }); |
| 370 | LspMessage::Request { |
| 371 | id, |
| 372 | method: "textDocument/references".to_string(), |
| 373 | params: Some(params), |
| 374 | } |
| 375 | } |
| 376 | |
| 377 | /// Create textDocument/rename request |
| 378 | pub fn create_rename_request(id: i64, uri: &str, pos: Position, new_name: &str) -> LspMessage { |
| 379 | let mut params = position_params(uri, pos); |
| 380 | params["newName"] = json!(new_name); |
| 381 | LspMessage::Request { |
| 382 | id, |
| 383 | method: "textDocument/rename".to_string(), |
| 384 | params: Some(params), |
| 385 | } |
| 386 | } |
| 387 | |
| 388 | /// Create textDocument/codeAction request |
| 389 | pub fn create_code_action_request(id: i64, uri: &str, range: Range) -> LspMessage { |
| 390 | LspMessage::Request { |
| 391 | id, |
| 392 | method: "textDocument/codeAction".to_string(), |
| 393 | params: Some(json!({ |
| 394 | "textDocument": { "uri": uri }, |
| 395 | "range": { |
| 396 | "start": { "line": range.start.line, "character": range.start.character }, |
| 397 | "end": { "line": range.end.line, "character": range.end.character } |
| 398 | }, |
| 399 | "context": { |
| 400 | "diagnostics": [] |
| 401 | } |
| 402 | })), |
| 403 | } |
| 404 | } |
| 405 | |
| 406 | /// Create textDocument/documentSymbol request |
| 407 | pub fn create_document_symbols_request(id: i64, uri: &str) -> LspMessage { |
| 408 | LspMessage::Request { |
| 409 | id, |
| 410 | method: "textDocument/documentSymbol".to_string(), |
| 411 | params: Some(json!({ |
| 412 | "textDocument": { "uri": uri } |
| 413 | })), |
| 414 | } |
| 415 | } |
| 416 | |
| 417 | /// Create workspace/symbol request |
| 418 | pub fn create_workspace_symbols_request(id: i64, query: &str) -> LspMessage { |
| 419 | LspMessage::Request { |
| 420 | id, |
| 421 | method: "workspace/symbol".to_string(), |
| 422 | params: Some(json!({ "query": query })), |
| 423 | } |
| 424 | } |
| 425 | |
| 426 | /// Create textDocument/signatureHelp request |
| 427 | pub fn create_signature_help_request(id: i64, uri: &str, pos: Position) -> LspMessage { |
| 428 | LspMessage::Request { |
| 429 | id, |
| 430 | method: "textDocument/signatureHelp".to_string(), |
| 431 | params: Some(position_params(uri, pos)), |
| 432 | } |
| 433 | } |
| 434 | |
| 435 | /// Create textDocument/formatting request |
| 436 | pub fn create_formatting_request(id: i64, uri: &str, tab_size: u32, use_spaces: bool) -> LspMessage { |
| 437 | LspMessage::Request { |
| 438 | id, |
| 439 | method: "textDocument/formatting".to_string(), |
| 440 | params: Some(json!({ |
| 441 | "textDocument": { "uri": uri }, |
| 442 | "options": { |
| 443 | "tabSize": tab_size, |
| 444 | "insertSpaces": use_spaces, |
| 445 | "trimTrailingWhitespace": true, |
| 446 | "insertFinalNewline": true |
| 447 | } |
| 448 | })), |
| 449 | } |
| 450 | } |
| 451 | |
| 452 | // ============================================================================ |
| 453 | // Response Parsing |
| 454 | // ============================================================================ |
| 455 | |
| 456 | /// Parse server capabilities from initialize response |
| 457 | pub fn parse_capabilities(result: &Value) -> Capabilities { |
| 458 | let caps = result.get("capabilities").unwrap_or(result); |
| 459 | |
| 460 | Capabilities { |
| 461 | completion: caps.get("completionProvider").is_some(), |
| 462 | hover: caps.get("hoverProvider").map_or(false, |v| !v.is_null()), |
| 463 | definition: caps.get("definitionProvider").map_or(false, |v| !v.is_null()), |
| 464 | references: caps.get("referencesProvider").map_or(false, |v| !v.is_null()), |
| 465 | rename: caps.get("renameProvider").map_or(false, |v| !v.is_null()), |
| 466 | code_actions: caps.get("codeActionProvider").map_or(false, |v| !v.is_null()), |
| 467 | formatting: caps.get("documentFormattingProvider").map_or(false, |v| !v.is_null()), |
| 468 | diagnostics: true, // Always assume diagnostics are supported |
| 469 | document_symbols: caps.get("documentSymbolProvider").map_or(false, |v| !v.is_null()), |
| 470 | workspace_symbols: caps.get("workspaceSymbolProvider").map_or(false, |v| !v.is_null()), |
| 471 | signature_help: caps.get("signatureHelpProvider").is_some(), |
| 472 | } |
| 473 | } |
| 474 | |
| 475 | /// Parse Position from JSON |
| 476 | pub fn parse_position(value: &Value) -> Option<super::types::Position> { |
| 477 | Some(super::types::Position { |
| 478 | line: value.get("line")?.as_u64()? as u32, |
| 479 | character: value.get("character")?.as_u64()? as u32, |
| 480 | }) |
| 481 | } |
| 482 | |
| 483 | /// Parse Range from JSON |
| 484 | pub fn parse_range(value: &Value) -> Option<super::types::Range> { |
| 485 | Some(super::types::Range { |
| 486 | start: parse_position(value.get("start")?)?, |
| 487 | end: parse_position(value.get("end")?)?, |
| 488 | }) |
| 489 | } |
| 490 | |
| 491 | /// Parse Location from JSON |
| 492 | pub fn parse_location(value: &Value) -> Option<super::types::Location> { |
| 493 | Some(super::types::Location { |
| 494 | uri: value.get("uri")?.as_str()?.to_string(), |
| 495 | range: parse_range(value.get("range")?)?, |
| 496 | }) |
| 497 | } |
| 498 | |
| 499 | /// Parse completion items from response |
| 500 | pub fn parse_completion_items(result: &Value) -> Vec<super::types::CompletionItem> { |
| 501 | let items = if let Some(arr) = result.as_array() { |
| 502 | arr |
| 503 | } else if let Some(arr) = result.get("items").and_then(|v| v.as_array()) { |
| 504 | arr |
| 505 | } else { |
| 506 | return Vec::new(); |
| 507 | }; |
| 508 | |
| 509 | items |
| 510 | .iter() |
| 511 | .filter_map(|item| { |
| 512 | let label = item.get("label")?.as_str()?.to_string(); |
| 513 | Some(super::types::CompletionItem { |
| 514 | label, |
| 515 | kind: item |
| 516 | .get("kind") |
| 517 | .and_then(|v| v.as_u64()) |
| 518 | .and_then(|k| super::types::CompletionItemKind::from_u32(k as u32)), |
| 519 | detail: item.get("detail").and_then(|v| v.as_str()).map(String::from), |
| 520 | documentation: item |
| 521 | .get("documentation") |
| 522 | .and_then(|v| { |
| 523 | if let Some(s) = v.as_str() { |
| 524 | Some(s.to_string()) |
| 525 | } else { |
| 526 | v.get("value").and_then(|v| v.as_str()).map(String::from) |
| 527 | } |
| 528 | }), |
| 529 | insert_text: item.get("insertText").and_then(|v| v.as_str()).map(String::from), |
| 530 | text_edit: item.get("textEdit").and_then(|te| { |
| 531 | Some(super::types::TextEdit { |
| 532 | range: parse_range(te.get("range")?)?, |
| 533 | new_text: te.get("newText")?.as_str()?.to_string(), |
| 534 | }) |
| 535 | }), |
| 536 | sort_text: item.get("sortText").and_then(|v| v.as_str()).map(String::from), |
| 537 | filter_text: item.get("filterText").and_then(|v| v.as_str()).map(String::from), |
| 538 | }) |
| 539 | }) |
| 540 | .collect() |
| 541 | } |
| 542 | |
| 543 | /// Parse hover info from response |
| 544 | pub fn parse_hover(result: &Value) -> Option<super::types::HoverInfo> { |
| 545 | let contents = result.get("contents")?; |
| 546 | let text = if let Some(s) = contents.as_str() { |
| 547 | s.to_string() |
| 548 | } else if let Some(arr) = contents.as_array() { |
| 549 | arr.iter() |
| 550 | .filter_map(|v| { |
| 551 | if let Some(s) = v.as_str() { |
| 552 | Some(s.to_string()) |
| 553 | } else { |
| 554 | v.get("value").and_then(|v| v.as_str()).map(String::from) |
| 555 | } |
| 556 | }) |
| 557 | .collect::<Vec<_>>() |
| 558 | .join("\n\n") |
| 559 | } else if let Some(value) = contents.get("value") { |
| 560 | value.as_str()?.to_string() |
| 561 | } else { |
| 562 | return None; |
| 563 | }; |
| 564 | |
| 565 | Some(super::types::HoverInfo { |
| 566 | contents: text, |
| 567 | range: result.get("range").and_then(parse_range), |
| 568 | }) |
| 569 | } |
| 570 | |
| 571 | /// Parse locations from definition/references response |
| 572 | pub fn parse_locations(result: &Value) -> Vec<super::types::Location> { |
| 573 | if let Some(loc) = parse_location(result) { |
| 574 | vec![loc] |
| 575 | } else if let Some(arr) = result.as_array() { |
| 576 | arr.iter().filter_map(parse_location).collect() |
| 577 | } else { |
| 578 | Vec::new() |
| 579 | } |
| 580 | } |
| 581 | |
| 582 | /// Parse document symbols from response |
| 583 | pub fn parse_document_symbols(result: &Value) -> Vec<super::types::DocumentSymbol> { |
| 584 | fn parse_symbol(value: &Value) -> Option<super::types::DocumentSymbol> { |
| 585 | let name = value.get("name")?.as_str()?.to_string(); |
| 586 | let kind = value.get("kind")?.as_u64()?; |
| 587 | |
| 588 | // Handle both DocumentSymbol and SymbolInformation formats |
| 589 | let (range, selection_range) = if let Some(r) = value.get("range") { |
| 590 | let range = parse_range(r)?; |
| 591 | let sel = value.get("selectionRange").and_then(parse_range).unwrap_or(range); |
| 592 | (range, sel) |
| 593 | } else if let Some(loc) = value.get("location") { |
| 594 | let range = parse_range(loc.get("range")?)?; |
| 595 | (range, range) |
| 596 | } else { |
| 597 | return None; |
| 598 | }; |
| 599 | |
| 600 | let children = value |
| 601 | .get("children") |
| 602 | .and_then(|c| c.as_array()) |
| 603 | .map(|arr| arr.iter().filter_map(parse_symbol).collect()) |
| 604 | .unwrap_or_default(); |
| 605 | |
| 606 | Some(super::types::DocumentSymbol { |
| 607 | name, |
| 608 | kind: super::types::SymbolKind::from_u32(kind as u32)?, |
| 609 | range, |
| 610 | selection_range, |
| 611 | children, |
| 612 | }) |
| 613 | } |
| 614 | |
| 615 | result |
| 616 | .as_array() |
| 617 | .map(|arr| arr.iter().filter_map(parse_symbol).collect()) |
| 618 | .unwrap_or_default() |
| 619 | } |
| 620 | |
| 621 | /// Parse diagnostics from publishDiagnostics notification |
| 622 | pub fn parse_diagnostics(params: &Value) -> (String, Vec<super::types::Diagnostic>) { |
| 623 | let uri = params |
| 624 | .get("uri") |
| 625 | .and_then(|v| v.as_str()) |
| 626 | .unwrap_or("") |
| 627 | .to_string(); |
| 628 | |
| 629 | let diagnostics = params |
| 630 | .get("diagnostics") |
| 631 | .and_then(|v| v.as_array()) |
| 632 | .map(|arr| { |
| 633 | arr.iter() |
| 634 | .filter_map(|d| { |
| 635 | Some(super::types::Diagnostic { |
| 636 | range: parse_range(d.get("range")?)?, |
| 637 | severity: d |
| 638 | .get("severity") |
| 639 | .and_then(|v| v.as_u64()) |
| 640 | .and_then(|s| super::types::DiagnosticSeverity::from_u32(s as u32)), |
| 641 | code: d.get("code").and_then(|v| { |
| 642 | if let Some(s) = v.as_str() { |
| 643 | Some(s.to_string()) |
| 644 | } else if let Some(n) = v.as_i64() { |
| 645 | Some(n.to_string()) |
| 646 | } else { |
| 647 | None |
| 648 | } |
| 649 | }), |
| 650 | source: d.get("source").and_then(|v| v.as_str()).map(String::from), |
| 651 | message: d.get("message")?.as_str()?.to_string(), |
| 652 | }) |
| 653 | }) |
| 654 | .collect() |
| 655 | }) |
| 656 | .unwrap_or_default(); |
| 657 | |
| 658 | (uri, diagnostics) |
| 659 | } |
| 660 | |
| 661 | /// Parse text edits from formatting response |
| 662 | pub fn parse_text_edits(result: &Value) -> Vec<super::types::TextEdit> { |
| 663 | result |
| 664 | .as_array() |
| 665 | .map(|arr| { |
| 666 | arr.iter() |
| 667 | .filter_map(|edit| { |
| 668 | Some(super::types::TextEdit { |
| 669 | range: parse_range(edit.get("range")?)?, |
| 670 | new_text: edit.get("newText")?.as_str()?.to_string(), |
| 671 | }) |
| 672 | }) |
| 673 | .collect() |
| 674 | }) |
| 675 | .unwrap_or_default() |
| 676 | } |
| 677 | |
| 678 | /// Parse workspace edit from rename response |
| 679 | pub fn parse_workspace_edit(result: &Value) -> super::types::WorkspaceEdit { |
| 680 | let mut edit = super::types::WorkspaceEdit::default(); |
| 681 | |
| 682 | if let Some(changes) = result.get("changes").and_then(|v| v.as_object()) { |
| 683 | for (uri, edits) in changes { |
| 684 | let text_edits = edits |
| 685 | .as_array() |
| 686 | .map(|arr| { |
| 687 | arr.iter() |
| 688 | .filter_map(|e| { |
| 689 | Some(super::types::TextEdit { |
| 690 | range: parse_range(e.get("range")?)?, |
| 691 | new_text: e.get("newText")?.as_str()?.to_string(), |
| 692 | }) |
| 693 | }) |
| 694 | .collect() |
| 695 | }) |
| 696 | .unwrap_or_default(); |
| 697 | edit.changes.insert(uri.clone(), text_edits); |
| 698 | } |
| 699 | } |
| 700 | |
| 701 | // Handle documentChanges format |
| 702 | if let Some(doc_changes) = result.get("documentChanges").and_then(|v| v.as_array()) { |
| 703 | for change in doc_changes { |
| 704 | if let Some(text_doc) = change.get("textDocument") { |
| 705 | let uri = text_doc.get("uri").and_then(|v| v.as_str()).unwrap_or(""); |
| 706 | let text_edits = change |
| 707 | .get("edits") |
| 708 | .and_then(|v| v.as_array()) |
| 709 | .map(|arr| { |
| 710 | arr.iter() |
| 711 | .filter_map(|e| { |
| 712 | Some(super::types::TextEdit { |
| 713 | range: parse_range(e.get("range")?)?, |
| 714 | new_text: e.get("newText")?.as_str()?.to_string(), |
| 715 | }) |
| 716 | }) |
| 717 | .collect() |
| 718 | }) |
| 719 | .unwrap_or_default(); |
| 720 | edit.changes.insert(uri.to_string(), text_edits); |
| 721 | } |
| 722 | } |
| 723 | } |
| 724 | |
| 725 | edit |
| 726 | } |
| 727 |