1//===--- Protocol.cpp - Language Server Protocol Implementation -----------===//
2//
3// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4// See https://llvm.org/LICENSE.txt for license information.
5// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
6//
7//===----------------------------------------------------------------------===//
8//
9// This file contains the serialization code for the LSP structs.
10//
11//===----------------------------------------------------------------------===//
12
13#include "Protocol.h"
14#include "URI.h"
15#include "support/Logger.h"
16#include "clang/Basic/LLVM.h"
17#include "clang/Index/IndexSymbol.h"
18#include "llvm/ADT/StringExtras.h"
19#include "llvm/ADT/StringRef.h"
20#include "llvm/ADT/StringSwitch.h"
21#include "llvm/Support/ErrorHandling.h"
22#include "llvm/Support/JSON.h"
23#include "llvm/Support/Path.h"
24#include "llvm/Support/raw_ostream.h"
25
26namespace clang {
27namespace clangd {
28namespace {
29
30// Helper that doesn't treat `null` and absent fields as failures.
31template <typename T>
32bool mapOptOrNull(const llvm::json::Value &Params, llvm::StringLiteral Prop,
33 T &Out, llvm::json::Path P) {
34 auto *O = Params.getAsObject();
35 assert(O);
36 auto *V = O->get(K: Prop);
37 // Field is missing or null.
38 if (!V || V->getAsNull())
39 return true;
40 return fromJSON(*V, Out, P.field(Field: Prop));
41}
42} // namespace
43
44char LSPError::ID;
45
46URIForFile URIForFile::canonicalize(llvm::StringRef AbsPath,
47 llvm::StringRef TUPath) {
48 assert(llvm::sys::path::is_absolute(AbsPath) && "the path is relative");
49 auto Resolved = URI::resolvePath(AbsPath, HintPath: TUPath);
50 if (!Resolved) {
51 elog(Fmt: "URIForFile: failed to resolve path {0} with TU path {1}: "
52 "{2}.\nUsing unresolved path.",
53 Vals&: AbsPath, Vals&: TUPath, Vals: Resolved.takeError());
54 return URIForFile(std::string(AbsPath));
55 }
56 return URIForFile(std::move(*Resolved));
57}
58
59llvm::Expected<URIForFile> URIForFile::fromURI(const URI &U,
60 llvm::StringRef HintPath) {
61 auto Resolved = URI::resolve(U, HintPath);
62 if (!Resolved)
63 return Resolved.takeError();
64 return URIForFile(std::move(*Resolved));
65}
66
67bool fromJSON(const llvm::json::Value &E, URIForFile &R, llvm::json::Path P) {
68 if (auto S = E.getAsString()) {
69 auto Parsed = URI::parse(Uri: *S);
70 if (!Parsed) {
71 consumeError(Err: Parsed.takeError());
72 P.report(Message: "failed to parse URI");
73 return false;
74 }
75 if (Parsed->scheme() != "file" && Parsed->scheme() != "test") {
76 P.report(Message: "clangd only supports 'file' URI scheme for workspace files");
77 return false;
78 }
79 // "file" and "test" schemes do not require hint path.
80 auto U = URIForFile::fromURI(U: *Parsed, /*HintPath=*/"");
81 if (!U) {
82 P.report(Message: "unresolvable URI");
83 consumeError(Err: U.takeError());
84 return false;
85 }
86 R = std::move(*U);
87 return true;
88 }
89 return false;
90}
91
92llvm::json::Value toJSON(const URIForFile &U) { return U.uri(); }
93
94llvm::raw_ostream &operator<<(llvm::raw_ostream &OS, const URIForFile &U) {
95 return OS << U.uri();
96}
97
98llvm::json::Value toJSON(const TextDocumentIdentifier &R) {
99 return llvm::json::Object{{.K: "uri", .V: R.uri}};
100}
101
102bool fromJSON(const llvm::json::Value &Params, TextDocumentIdentifier &R,
103 llvm::json::Path P) {
104 llvm::json::ObjectMapper O(Params, P);
105 return O && O.map(Prop: "uri", Out&: R.uri);
106}
107
108llvm::json::Value toJSON(const VersionedTextDocumentIdentifier &R) {
109 auto Result = toJSON(R: static_cast<const TextDocumentIdentifier &>(R));
110 Result.getAsObject()->try_emplace(K: "version", Args: R.version);
111 return Result;
112}
113
114bool fromJSON(const llvm::json::Value &Params,
115 VersionedTextDocumentIdentifier &R, llvm::json::Path P) {
116 llvm::json::ObjectMapper O(Params, P);
117 return fromJSON(Params, R&: static_cast<TextDocumentIdentifier &>(R), P) && O &&
118 O.map(Prop: "version", Out&: R.version);
119}
120
121bool fromJSON(const llvm::json::Value &Params, Position &R,
122 llvm::json::Path P) {
123 llvm::json::ObjectMapper O(Params, P);
124 return O && O.map(Prop: "line", Out&: R.line) && O.map(Prop: "character", Out&: R.character);
125}
126
127llvm::json::Value toJSON(const Position &P) {
128 return llvm::json::Object{
129 {.K: "line", .V: P.line},
130 {.K: "character", .V: P.character},
131 };
132}
133
134llvm::raw_ostream &operator<<(llvm::raw_ostream &OS, const Position &P) {
135 return OS << P.line << ':' << P.character;
136}
137
138bool fromJSON(const llvm::json::Value &Params, Range &R, llvm::json::Path P) {
139 llvm::json::ObjectMapper O(Params, P);
140 return O && O.map(Prop: "start", Out&: R.start) && O.map(Prop: "end", Out&: R.end);
141}
142
143llvm::json::Value toJSON(const Range &P) {
144 return llvm::json::Object{
145 {.K: "start", .V: P.start},
146 {.K: "end", .V: P.end},
147 };
148}
149
150llvm::raw_ostream &operator<<(llvm::raw_ostream &OS, const Range &R) {
151 return OS << R.start << '-' << R.end;
152}
153
154llvm::json::Value toJSON(const Location &P) {
155 return llvm::json::Object{
156 {.K: "uri", .V: P.uri},
157 {.K: "range", .V: P.range},
158 };
159}
160
161llvm::raw_ostream &operator<<(llvm::raw_ostream &OS, const Location &L) {
162 return OS << L.range << '@' << L.uri;
163}
164
165llvm::json::Value toJSON(const ReferenceLocation &P) {
166 llvm::json::Object Result{
167 {.K: "uri", .V: P.uri},
168 {.K: "range", .V: P.range},
169 };
170 if (P.containerName)
171 Result.insert(E: {.K: "containerName", .V: P.containerName});
172 return Result;
173}
174
175llvm::raw_ostream &operator<<(llvm::raw_ostream &OS,
176 const ReferenceLocation &L) {
177 return OS << L.range << '@' << L.uri << " (container: " << L.containerName
178 << ")";
179}
180
181bool fromJSON(const llvm::json::Value &Params, TextDocumentItem &R,
182 llvm::json::Path P) {
183 llvm::json::ObjectMapper O(Params, P);
184 return O && O.map(Prop: "uri", Out&: R.uri) && O.map(Prop: "languageId", Out&: R.languageId) &&
185 O.map(Prop: "version", Out&: R.version) && O.map(Prop: "text", Out&: R.text);
186}
187
188bool fromJSON(const llvm::json::Value &Params, TextEdit &R,
189 llvm::json::Path P) {
190 llvm::json::ObjectMapper O(Params, P);
191 return O && O.map(Prop: "range", Out&: R.range) && O.map(Prop: "newText", Out&: R.newText) &&
192 O.mapOptional(Prop: "annotationId", Out&: R.annotationId);
193}
194
195llvm::json::Value toJSON(const TextEdit &P) {
196 llvm::json::Object Result{
197 {.K: "range", .V: P.range},
198 {.K: "newText", .V: P.newText},
199 };
200 if (!P.annotationId.empty())
201 Result["annotationId"] = P.annotationId;
202 return Result;
203}
204
205bool fromJSON(const llvm::json::Value &Params, ChangeAnnotation &R,
206 llvm::json::Path P) {
207 llvm::json::ObjectMapper O(Params, P);
208 return O && O.map(Prop: "label", Out&: R.label) &&
209 O.map(Prop: "needsConfirmation", Out&: R.needsConfirmation) &&
210 O.mapOptional(Prop: "description", Out&: R.description);
211}
212llvm::json::Value toJSON(const ChangeAnnotation & CA) {
213 llvm::json::Object Result{{.K: "label", .V: CA.label}};
214 if (CA.needsConfirmation)
215 Result["needsConfirmation"] = *CA.needsConfirmation;
216 if (!CA.description.empty())
217 Result["description"] = CA.description;
218 return Result;
219}
220
221bool fromJSON(const llvm::json::Value &Params, TextDocumentEdit &R,
222 llvm::json::Path P) {
223 llvm::json::ObjectMapper O(Params, P);
224 return O && O.map(Prop: "textDocument", Out&: R.textDocument) && O.map(Prop: "edits", Out&: R.edits);
225}
226llvm::json::Value toJSON(const TextDocumentEdit &P) {
227 llvm::json::Object Result{{.K: "textDocument", .V: P.textDocument},
228 {.K: "edits", .V: P.edits}};
229 return Result;
230}
231
232llvm::raw_ostream &operator<<(llvm::raw_ostream &OS, const TextEdit &TE) {
233 OS << TE.range << " => \"";
234 llvm::printEscapedString(Name: TE.newText, Out&: OS);
235 return OS << '"';
236}
237
238bool fromJSON(const llvm::json::Value &E, TraceLevel &Out, llvm::json::Path P) {
239 if (auto S = E.getAsString()) {
240 if (*S == "off") {
241 Out = TraceLevel::Off;
242 return true;
243 }
244 if (*S == "messages") {
245 Out = TraceLevel::Messages;
246 return true;
247 }
248 if (*S == "verbose") {
249 Out = TraceLevel::Verbose;
250 return true;
251 }
252 }
253 return false;
254}
255
256bool fromJSON(const llvm::json::Value &E, SymbolKind &Out, llvm::json::Path P) {
257 if (auto T = E.getAsInteger()) {
258 if (*T < static_cast<int>(SymbolKind::File) ||
259 *T > static_cast<int>(SymbolKind::TypeParameter))
260 return false;
261 Out = static_cast<SymbolKind>(*T);
262 return true;
263 }
264 return false;
265}
266
267bool fromJSON(const llvm::json::Value &E, SymbolKindBitset &Out,
268 llvm::json::Path P) {
269 if (auto *A = E.getAsArray()) {
270 for (size_t I = 0; I < A->size(); ++I) {
271 SymbolKind KindOut;
272 if (fromJSON(E: (*A)[I], Out&: KindOut, P: P.index(Index: I)))
273 Out.set(position: size_t(KindOut));
274 }
275 return true;
276 }
277 return false;
278}
279
280SymbolKind adjustKindToCapability(SymbolKind Kind,
281 SymbolKindBitset &SupportedSymbolKinds) {
282 auto KindVal = static_cast<size_t>(Kind);
283 if (KindVal >= SymbolKindMin && KindVal <= SupportedSymbolKinds.size() &&
284 SupportedSymbolKinds[KindVal])
285 return Kind;
286
287 switch (Kind) {
288 // Provide some fall backs for common kinds that are close enough.
289 case SymbolKind::Struct:
290 return SymbolKind::Class;
291 case SymbolKind::EnumMember:
292 return SymbolKind::Enum;
293 default:
294 return SymbolKind::String;
295 }
296}
297
298SymbolKind indexSymbolKindToSymbolKind(index::SymbolKind Kind) {
299 switch (Kind) {
300 case index::SymbolKind::Unknown:
301 return SymbolKind::Variable;
302 case index::SymbolKind::Module:
303 return SymbolKind::Module;
304 case index::SymbolKind::Namespace:
305 return SymbolKind::Namespace;
306 case index::SymbolKind::NamespaceAlias:
307 return SymbolKind::Namespace;
308 case index::SymbolKind::Macro:
309 return SymbolKind::String;
310 case index::SymbolKind::Enum:
311 return SymbolKind::Enum;
312 case index::SymbolKind::Struct:
313 return SymbolKind::Struct;
314 case index::SymbolKind::Class:
315 return SymbolKind::Class;
316 case index::SymbolKind::Protocol:
317 return SymbolKind::Interface;
318 case index::SymbolKind::Extension:
319 return SymbolKind::Interface;
320 case index::SymbolKind::Union:
321 return SymbolKind::Class;
322 case index::SymbolKind::TypeAlias:
323 return SymbolKind::Class;
324 case index::SymbolKind::Function:
325 return SymbolKind::Function;
326 case index::SymbolKind::Variable:
327 return SymbolKind::Variable;
328 case index::SymbolKind::Field:
329 return SymbolKind::Field;
330 case index::SymbolKind::EnumConstant:
331 return SymbolKind::EnumMember;
332 case index::SymbolKind::InstanceMethod:
333 case index::SymbolKind::ClassMethod:
334 case index::SymbolKind::StaticMethod:
335 return SymbolKind::Method;
336 case index::SymbolKind::InstanceProperty:
337 case index::SymbolKind::ClassProperty:
338 case index::SymbolKind::StaticProperty:
339 return SymbolKind::Property;
340 case index::SymbolKind::Constructor:
341 case index::SymbolKind::Destructor:
342 return SymbolKind::Constructor;
343 case index::SymbolKind::ConversionFunction:
344 return SymbolKind::Function;
345 case index::SymbolKind::Parameter:
346 case index::SymbolKind::NonTypeTemplateParm:
347 return SymbolKind::Variable;
348 case index::SymbolKind::Using:
349 return SymbolKind::Namespace;
350 case index::SymbolKind::TemplateTemplateParm:
351 case index::SymbolKind::TemplateTypeParm:
352 return SymbolKind::TypeParameter;
353 case index::SymbolKind::Concept:
354 return SymbolKind::Interface;
355 }
356 llvm_unreachable("invalid symbol kind");
357}
358
359bool fromJSON(const llvm::json::Value &Params, ClientCapabilities &R,
360 llvm::json::Path P) {
361 const llvm::json::Object *O = Params.getAsObject();
362 if (!O) {
363 P.report(Message: "expected object");
364 return false;
365 }
366 if (auto *TextDocument = O->getObject(K: "textDocument")) {
367 if (auto *SemanticHighlighting =
368 TextDocument->getObject(K: "semanticHighlightingCapabilities")) {
369 if (auto SemanticHighlightingSupport =
370 SemanticHighlighting->getBoolean(K: "semanticHighlighting"))
371 R.TheiaSemanticHighlighting = *SemanticHighlightingSupport;
372 }
373 if (auto *InactiveRegions =
374 TextDocument->getObject(K: "inactiveRegionsCapabilities")) {
375 if (auto InactiveRegionsSupport =
376 InactiveRegions->getBoolean(K: "inactiveRegions")) {
377 R.InactiveRegions = *InactiveRegionsSupport;
378 }
379 }
380 if (TextDocument->getObject(K: "semanticTokens"))
381 R.SemanticTokens = true;
382 if (auto *Diagnostics = TextDocument->getObject(K: "publishDiagnostics")) {
383 if (auto CategorySupport = Diagnostics->getBoolean(K: "categorySupport"))
384 R.DiagnosticCategory = *CategorySupport;
385 if (auto CodeActions = Diagnostics->getBoolean(K: "codeActionsInline"))
386 R.DiagnosticFixes = *CodeActions;
387 if (auto RelatedInfo = Diagnostics->getBoolean(K: "relatedInformation"))
388 R.DiagnosticRelatedInformation = *RelatedInfo;
389 }
390 if (auto *References = TextDocument->getObject(K: "references"))
391 if (auto ContainerSupport = References->getBoolean(K: "container"))
392 R.ReferenceContainer = *ContainerSupport;
393 if (auto *Completion = TextDocument->getObject(K: "completion")) {
394 if (auto *Item = Completion->getObject(K: "completionItem")) {
395 if (auto SnippetSupport = Item->getBoolean(K: "snippetSupport"))
396 R.CompletionSnippets = *SnippetSupport;
397 if (auto LabelDetailsSupport = Item->getBoolean(K: "labelDetailsSupport"))
398 R.CompletionLabelDetail = *LabelDetailsSupport;
399 if (const auto *DocumentationFormat =
400 Item->getArray(K: "documentationFormat")) {
401 for (const auto &Format : *DocumentationFormat) {
402 if (fromJSON(Format, R.CompletionDocumentationFormat, P))
403 break;
404 }
405 }
406 }
407 if (auto *ItemKind = Completion->getObject(K: "completionItemKind")) {
408 if (auto *ValueSet = ItemKind->get(K: "valueSet")) {
409 R.CompletionItemKinds.emplace();
410 if (!fromJSON(*ValueSet, *R.CompletionItemKinds,
411 P.field(Field: "textDocument")
412 .field(Field: "completion")
413 .field(Field: "completionItemKind")
414 .field(Field: "valueSet")))
415 return false;
416 }
417 }
418 if (auto EditsNearCursor = Completion->getBoolean(K: "editsNearCursor"))
419 R.CompletionFixes = *EditsNearCursor;
420 }
421 if (auto *CodeAction = TextDocument->getObject(K: "codeAction")) {
422 if (CodeAction->getObject(K: "codeActionLiteralSupport"))
423 R.CodeActionStructure = true;
424 }
425 if (auto *DocumentSymbol = TextDocument->getObject(K: "documentSymbol")) {
426 if (auto HierarchicalSupport =
427 DocumentSymbol->getBoolean(K: "hierarchicalDocumentSymbolSupport"))
428 R.HierarchicalDocumentSymbol = *HierarchicalSupport;
429 }
430 if (auto *Hover = TextDocument->getObject(K: "hover")) {
431 if (auto *ContentFormat = Hover->getArray(K: "contentFormat")) {
432 for (const auto &Format : *ContentFormat) {
433 if (fromJSON(Format, R.HoverContentFormat, P))
434 break;
435 }
436 }
437 }
438 if (auto *Help = TextDocument->getObject(K: "signatureHelp")) {
439 R.HasSignatureHelp = true;
440 if (auto *Info = Help->getObject(K: "signatureInformation")) {
441 if (auto *Parameter = Info->getObject(K: "parameterInformation")) {
442 if (auto OffsetSupport = Parameter->getBoolean(K: "labelOffsetSupport"))
443 R.OffsetsInSignatureHelp = *OffsetSupport;
444 }
445 if (const auto *DocumentationFormat =
446 Info->getArray(K: "documentationFormat")) {
447 for (const auto &Format : *DocumentationFormat) {
448 if (fromJSON(Format, R.SignatureHelpDocumentationFormat, P))
449 break;
450 }
451 }
452 }
453 }
454 if (auto *Folding = TextDocument->getObject(K: "foldingRange")) {
455 if (auto LineFolding = Folding->getBoolean(K: "lineFoldingOnly"))
456 R.LineFoldingOnly = *LineFolding;
457 }
458 if (auto *Rename = TextDocument->getObject(K: "rename")) {
459 if (auto RenameSupport = Rename->getBoolean(K: "prepareSupport"))
460 R.RenamePrepareSupport = *RenameSupport;
461 }
462 }
463 if (auto *Workspace = O->getObject(K: "workspace")) {
464 if (auto *Symbol = Workspace->getObject(K: "symbol")) {
465 if (auto *SymbolKind = Symbol->getObject(K: "symbolKind")) {
466 if (auto *ValueSet = SymbolKind->get(K: "valueSet")) {
467 R.WorkspaceSymbolKinds.emplace();
468 if (!fromJSON(E: *ValueSet, Out&: *R.WorkspaceSymbolKinds,
469 P: P.field(Field: "workspace")
470 .field(Field: "symbol")
471 .field(Field: "symbolKind")
472 .field(Field: "valueSet")))
473 return false;
474 }
475 }
476 }
477 if (auto *SemanticTokens = Workspace->getObject(K: "semanticTokens")) {
478 if (auto RefreshSupport = SemanticTokens->getBoolean(K: "refreshSupport"))
479 R.SemanticTokenRefreshSupport = *RefreshSupport;
480 }
481 if (auto *WorkspaceEdit = Workspace->getObject(K: "workspaceEdit")) {
482 if (auto DocumentChanges = WorkspaceEdit->getBoolean(K: "documentChanges"))
483 R.DocumentChanges = *DocumentChanges;
484 if (WorkspaceEdit->getObject(K: "changeAnnotationSupport")) {
485 R.ChangeAnnotation = true;
486 }
487 }
488 }
489 if (auto *Window = O->getObject(K: "window")) {
490 if (auto WorkDoneProgress = Window->getBoolean(K: "workDoneProgress"))
491 R.WorkDoneProgress = *WorkDoneProgress;
492 if (auto Implicit = Window->getBoolean(K: "implicitWorkDoneProgressCreate"))
493 R.ImplicitProgressCreation = *Implicit;
494 }
495 if (auto *General = O->getObject(K: "general")) {
496 if (auto *StaleRequestSupport = General->getObject(K: "staleRequestSupport")) {
497 if (auto Cancel = StaleRequestSupport->getBoolean(K: "cancel"))
498 R.CancelsStaleRequests = *Cancel;
499 }
500 }
501 if (auto *OffsetEncoding = O->get(K: "offsetEncoding")) {
502 R.offsetEncoding.emplace();
503 if (!fromJSON(E: *OffsetEncoding, Out&: *R.offsetEncoding,
504 P: P.field(Field: "offsetEncoding")))
505 return false;
506 }
507
508 if (auto *Experimental = O->getObject(K: "experimental")) {
509 if (auto *TextDocument = Experimental->getObject(K: "textDocument")) {
510 if (auto *Completion = TextDocument->getObject(K: "completion")) {
511 if (auto EditsNearCursor = Completion->getBoolean(K: "editsNearCursor"))
512 R.CompletionFixes |= *EditsNearCursor;
513 }
514 if (auto *References = TextDocument->getObject(K: "references")) {
515 if (auto ContainerSupport = References->getBoolean(K: "container")) {
516 R.ReferenceContainer |= *ContainerSupport;
517 }
518 }
519 if (auto *Diagnostics = TextDocument->getObject(K: "publishDiagnostics")) {
520 if (auto CodeActions = Diagnostics->getBoolean(K: "codeActionsInline")) {
521 R.DiagnosticFixes |= *CodeActions;
522 }
523 }
524 if (auto *InactiveRegions =
525 TextDocument->getObject(K: "inactiveRegionsCapabilities")) {
526 if (auto InactiveRegionsSupport =
527 InactiveRegions->getBoolean(K: "inactiveRegions")) {
528 R.InactiveRegions |= *InactiveRegionsSupport;
529 }
530 }
531 }
532 if (auto *Window = Experimental->getObject(K: "window")) {
533 if (auto Implicit =
534 Window->getBoolean(K: "implicitWorkDoneProgressCreate")) {
535 R.ImplicitProgressCreation |= *Implicit;
536 }
537 }
538 if (auto *OffsetEncoding = Experimental->get(K: "offsetEncoding")) {
539 R.offsetEncoding.emplace();
540 if (!fromJSON(E: *OffsetEncoding, Out&: *R.offsetEncoding,
541 P: P.field(Field: "offsetEncoding")))
542 return false;
543 }
544 }
545
546 return true;
547}
548
549bool fromJSON(const llvm::json::Value &Params, InitializeParams &R,
550 llvm::json::Path P) {
551 llvm::json::ObjectMapper O(Params, P);
552 if (!O)
553 return false;
554 // We deliberately don't fail if we can't parse individual fields.
555 // Failing to handle a slightly malformed initialize would be a disaster.
556 O.map(Prop: "processId", Out&: R.processId);
557 O.map(Prop: "rootUri", Out&: R.rootUri);
558 O.map(Prop: "rootPath", Out&: R.rootPath);
559 O.map(Prop: "capabilities", Out&: R.capabilities);
560 if (auto *RawCaps = Params.getAsObject()->getObject(K: "capabilities"))
561 R.rawCapabilities = *RawCaps;
562 O.map(Prop: "trace", Out&: R.trace);
563 O.map(Prop: "initializationOptions", Out&: R.initializationOptions);
564 return true;
565}
566
567llvm::json::Value toJSON(const WorkDoneProgressCreateParams &P) {
568 return llvm::json::Object{{.K: "token", .V: P.token}};
569}
570
571llvm::json::Value toJSON(const WorkDoneProgressBegin &P) {
572 llvm::json::Object Result{
573 {.K: "kind", .V: "begin"},
574 {.K: "title", .V: P.title},
575 };
576 if (P.cancellable)
577 Result["cancellable"] = true;
578 if (P.percentage)
579 Result["percentage"] = 0;
580
581 // FIXME: workaround for older gcc/clang
582 return std::move(Result);
583}
584
585llvm::json::Value toJSON(const WorkDoneProgressReport &P) {
586 llvm::json::Object Result{{.K: "kind", .V: "report"}};
587 if (P.cancellable)
588 Result["cancellable"] = *P.cancellable;
589 if (P.message)
590 Result["message"] = *P.message;
591 if (P.percentage)
592 Result["percentage"] = *P.percentage;
593 // FIXME: workaround for older gcc/clang
594 return std::move(Result);
595}
596
597llvm::json::Value toJSON(const WorkDoneProgressEnd &P) {
598 llvm::json::Object Result{{.K: "kind", .V: "end"}};
599 if (P.message)
600 Result["message"] = *P.message;
601 // FIXME: workaround for older gcc/clang
602 return std::move(Result);
603}
604
605llvm::json::Value toJSON(const MessageType &R) {
606 return static_cast<int64_t>(R);
607}
608
609llvm::json::Value toJSON(const ShowMessageParams &R) {
610 return llvm::json::Object{{.K: "type", .V: R.type}, {.K: "message", .V: R.message}};
611}
612
613bool fromJSON(const llvm::json::Value &Params, DidOpenTextDocumentParams &R,
614 llvm::json::Path P) {
615 llvm::json::ObjectMapper O(Params, P);
616 return O && O.map(Prop: "textDocument", Out&: R.textDocument);
617}
618
619bool fromJSON(const llvm::json::Value &Params, DidCloseTextDocumentParams &R,
620 llvm::json::Path P) {
621 llvm::json::ObjectMapper O(Params, P);
622 return O && O.map(Prop: "textDocument", Out&: R.textDocument);
623}
624
625bool fromJSON(const llvm::json::Value &Params, DidSaveTextDocumentParams &R,
626 llvm::json::Path P) {
627 llvm::json::ObjectMapper O(Params, P);
628 return O && O.map(Prop: "textDocument", Out&: R.textDocument);
629}
630
631bool fromJSON(const llvm::json::Value &Params, DidChangeTextDocumentParams &R,
632 llvm::json::Path P) {
633 llvm::json::ObjectMapper O(Params, P);
634 return O && O.map(Prop: "textDocument", Out&: R.textDocument) &&
635 O.map(Prop: "contentChanges", Out&: R.contentChanges) &&
636 O.map(Prop: "wantDiagnostics", Out&: R.wantDiagnostics) &&
637 mapOptOrNull(Params, Prop: "forceRebuild", Out&: R.forceRebuild, P);
638}
639
640bool fromJSON(const llvm::json::Value &E, FileChangeType &Out,
641 llvm::json::Path P) {
642 if (auto T = E.getAsInteger()) {
643 if (*T < static_cast<int>(FileChangeType::Created) ||
644 *T > static_cast<int>(FileChangeType::Deleted))
645 return false;
646 Out = static_cast<FileChangeType>(*T);
647 return true;
648 }
649 return false;
650}
651
652bool fromJSON(const llvm::json::Value &Params, FileEvent &R,
653 llvm::json::Path P) {
654 llvm::json::ObjectMapper O(Params, P);
655 return O && O.map(Prop: "uri", Out&: R.uri) && O.map(Prop: "type", Out&: R.type);
656}
657
658bool fromJSON(const llvm::json::Value &Params, DidChangeWatchedFilesParams &R,
659 llvm::json::Path P) {
660 llvm::json::ObjectMapper O(Params, P);
661 return O && O.map(Prop: "changes", Out&: R.changes);
662}
663
664bool fromJSON(const llvm::json::Value &Params,
665 TextDocumentContentChangeEvent &R, llvm::json::Path P) {
666 llvm::json::ObjectMapper O(Params, P);
667 return O && O.map(Prop: "range", Out&: R.range) && O.map(Prop: "rangeLength", Out&: R.rangeLength) &&
668 O.map(Prop: "text", Out&: R.text);
669}
670
671bool fromJSON(const llvm::json::Value &Params, DocumentRangeFormattingParams &R,
672 llvm::json::Path P) {
673 llvm::json::ObjectMapper O(Params, P);
674 return O && O.map(Prop: "textDocument", Out&: R.textDocument) && O.map(Prop: "range", Out&: R.range);
675 ;
676}
677
678bool fromJSON(const llvm::json::Value &Params,
679 DocumentRangesFormattingParams &R, llvm::json::Path P) {
680 llvm::json::ObjectMapper O(Params, P);
681 return O && O.map(Prop: "textDocument", Out&: R.textDocument) &&
682 O.map(Prop: "ranges", Out&: R.ranges);
683 ;
684}
685
686bool fromJSON(const llvm::json::Value &Params,
687 DocumentOnTypeFormattingParams &R, llvm::json::Path P) {
688 llvm::json::ObjectMapper O(Params, P);
689 return O && O.map(Prop: "textDocument", Out&: R.textDocument) &&
690 O.map(Prop: "position", Out&: R.position) && O.map(Prop: "ch", Out&: R.ch);
691}
692
693bool fromJSON(const llvm::json::Value &Params, DocumentFormattingParams &R,
694 llvm::json::Path P) {
695 llvm::json::ObjectMapper O(Params, P);
696 return O && O.map(Prop: "textDocument", Out&: R.textDocument);
697}
698
699bool fromJSON(const llvm::json::Value &Params, DocumentSymbolParams &R,
700 llvm::json::Path P) {
701 llvm::json::ObjectMapper O(Params, P);
702 return O && O.map(Prop: "textDocument", Out&: R.textDocument);
703}
704
705llvm::json::Value toJSON(const DiagnosticRelatedInformation &DRI) {
706 return llvm::json::Object{
707 {.K: "location", .V: DRI.location},
708 {.K: "message", .V: DRI.message},
709 };
710}
711
712llvm::json::Value toJSON(DiagnosticTag Tag) { return static_cast<int>(Tag); }
713
714llvm::json::Value toJSON(const CodeDescription &D) {
715 return llvm::json::Object{{.K: "href", .V: D.href}};
716}
717
718llvm::json::Value toJSON(const Diagnostic &D) {
719 llvm::json::Object Diag{
720 {.K: "range", .V: D.range},
721 {.K: "severity", .V: D.severity},
722 {.K: "message", .V: D.message},
723 };
724 if (D.category)
725 Diag["category"] = *D.category;
726 if (D.codeActions)
727 Diag["codeActions"] = D.codeActions;
728 if (!D.code.empty())
729 Diag["code"] = D.code;
730 if (D.codeDescription)
731 Diag["codeDescription"] = *D.codeDescription;
732 if (!D.source.empty())
733 Diag["source"] = D.source;
734 if (D.relatedInformation)
735 Diag["relatedInformation"] = *D.relatedInformation;
736 if (!D.data.empty())
737 Diag["data"] = llvm::json::Object(D.data);
738 if (!D.tags.empty())
739 Diag["tags"] = llvm::json::Array{D.tags};
740 // FIXME: workaround for older gcc/clang
741 return std::move(Diag);
742}
743
744bool fromJSON(const llvm::json::Value &Params, Diagnostic &R,
745 llvm::json::Path P) {
746 llvm::json::ObjectMapper O(Params, P);
747 if (!O)
748 return false;
749 if (auto *Data = Params.getAsObject()->getObject(K: "data"))
750 R.data = *Data;
751 return O.map(Prop: "range", Out&: R.range) && O.map(Prop: "message", Out&: R.message) &&
752 mapOptOrNull(Params, Prop: "severity", Out&: R.severity, P) &&
753 mapOptOrNull(Params, Prop: "category", Out&: R.category, P) &&
754 mapOptOrNull(Params, Prop: "code", Out&: R.code, P) &&
755 mapOptOrNull(Params, Prop: "source", Out&: R.source, P);
756}
757
758llvm::json::Value toJSON(const PublishDiagnosticsParams &PDP) {
759 llvm::json::Object Result{
760 {.K: "uri", .V: PDP.uri},
761 {.K: "diagnostics", .V: PDP.diagnostics},
762 };
763 if (PDP.version)
764 Result["version"] = PDP.version;
765 return std::move(Result);
766}
767
768bool fromJSON(const llvm::json::Value &Params, CodeActionContext &R,
769 llvm::json::Path P) {
770 llvm::json::ObjectMapper O(Params, P);
771 if (!O || !O.map(Prop: "diagnostics", Out&: R.diagnostics))
772 return false;
773 O.map(Prop: "only", Out&: R.only);
774 return true;
775}
776
777llvm::raw_ostream &operator<<(llvm::raw_ostream &OS, const Diagnostic &D) {
778 OS << D.range << " [";
779 switch (D.severity) {
780 case 1:
781 OS << "error";
782 break;
783 case 2:
784 OS << "warning";
785 break;
786 case 3:
787 OS << "note";
788 break;
789 case 4:
790 OS << "remark";
791 break;
792 default:
793 OS << "diagnostic";
794 break;
795 }
796 return OS << '(' << D.severity << "): " << D.message << "]";
797}
798
799bool fromJSON(const llvm::json::Value &Params, CodeActionParams &R,
800 llvm::json::Path P) {
801 llvm::json::ObjectMapper O(Params, P);
802 return O && O.map(Prop: "textDocument", Out&: R.textDocument) &&
803 O.map(Prop: "range", Out&: R.range) && O.map(Prop: "context", Out&: R.context);
804}
805
806bool fromJSON(const llvm::json::Value &Params, WorkspaceEdit &R,
807 llvm::json::Path P) {
808 llvm::json::ObjectMapper O(Params, P);
809 return O && O.map(Prop: "changes", Out&: R.changes) &&
810 O.map(Prop: "documentChanges", Out&: R.documentChanges) &&
811 O.mapOptional(Prop: "changeAnnotations", Out&: R.changeAnnotations);
812}
813
814bool fromJSON(const llvm::json::Value &Params, ExecuteCommandParams &R,
815 llvm::json::Path P) {
816 llvm::json::ObjectMapper O(Params, P);
817 if (!O || !O.map(Prop: "command", Out&: R.command))
818 return false;
819
820 const auto *Args = Params.getAsObject()->get(K: "arguments");
821 if (!Args)
822 return true; // Missing args is ok, argument is null.
823 const auto *ArgsArray = Args->getAsArray();
824 if (!ArgsArray) {
825 P.field(Field: "arguments").report(Message: "expected array");
826 return false;
827 }
828 if (ArgsArray->size() > 1) {
829 P.field(Field: "arguments").report(Message: "Command should have 0 or 1 argument");
830 return false;
831 }
832 if (ArgsArray->size() == 1) {
833 R.argument = ArgsArray->front();
834 }
835 return true;
836}
837
838llvm::json::Value toJSON(const SymbolInformation &P) {
839 llvm::json::Object O{
840 {.K: "name", .V: P.name},
841 {.K: "kind", .V: static_cast<int>(P.kind)},
842 {.K: "location", .V: P.location},
843 {.K: "containerName", .V: P.containerName},
844 };
845 if (P.score)
846 O["score"] = *P.score;
847 return std::move(O);
848}
849
850llvm::raw_ostream &operator<<(llvm::raw_ostream &O,
851 const SymbolInformation &SI) {
852 O << SI.containerName << "::" << SI.name << " - " << toJSON(P: SI);
853 return O;
854}
855
856bool operator==(const SymbolDetails &LHS, const SymbolDetails &RHS) {
857 return LHS.name == RHS.name && LHS.containerName == RHS.containerName &&
858 LHS.USR == RHS.USR && LHS.ID == RHS.ID &&
859 LHS.declarationRange == RHS.declarationRange &&
860 LHS.definitionRange == RHS.definitionRange;
861}
862
863llvm::json::Value toJSON(const SymbolDetails &P) {
864 llvm::json::Object Result{{.K: "name", .V: llvm::json::Value(nullptr)},
865 {.K: "containerName", .V: llvm::json::Value(nullptr)},
866 {.K: "usr", .V: llvm::json::Value(nullptr)},
867 {.K: "id", .V: llvm::json::Value(nullptr)}};
868
869 if (!P.name.empty())
870 Result["name"] = P.name;
871
872 if (!P.containerName.empty())
873 Result["containerName"] = P.containerName;
874
875 if (!P.USR.empty())
876 Result["usr"] = P.USR;
877
878 if (P.ID)
879 Result["id"] = P.ID.str();
880
881 if (P.declarationRange)
882 Result["declarationRange"] = *P.declarationRange;
883
884 if (P.definitionRange)
885 Result["definitionRange"] = *P.definitionRange;
886
887 // FIXME: workaround for older gcc/clang
888 return std::move(Result);
889}
890
891llvm::raw_ostream &operator<<(llvm::raw_ostream &O, const SymbolDetails &S) {
892 if (!S.containerName.empty()) {
893 O << S.containerName;
894 llvm::StringRef ContNameRef;
895 if (!ContNameRef.ends_with(Suffix: "::")) {
896 O << " ";
897 }
898 }
899 O << S.name << " - " << toJSON(P: S);
900 return O;
901}
902
903bool fromJSON(const llvm::json::Value &Params, WorkspaceSymbolParams &R,
904 llvm::json::Path P) {
905 llvm::json::ObjectMapper O(Params, P);
906 return O && O.map(Prop: "query", Out&: R.query) &&
907 mapOptOrNull(Params, Prop: "limit", Out&: R.limit, P);
908}
909
910llvm::json::Value toJSON(const Command &C) {
911 auto Cmd = llvm::json::Object{{.K: "title", .V: C.title}, {.K: "command", .V: C.command}};
912 if (!C.argument.getAsNull())
913 Cmd["arguments"] = llvm::json::Array{C.argument};
914 return std::move(Cmd);
915}
916
917const llvm::StringLiteral CodeAction::QUICKFIX_KIND = "quickfix";
918const llvm::StringLiteral CodeAction::REFACTOR_KIND = "refactor";
919const llvm::StringLiteral CodeAction::INFO_KIND = "info";
920
921llvm::json::Value toJSON(const CodeAction &CA) {
922 auto CodeAction = llvm::json::Object{{.K: "title", .V: CA.title}};
923 if (CA.kind)
924 CodeAction["kind"] = *CA.kind;
925 if (CA.diagnostics)
926 CodeAction["diagnostics"] = llvm::json::Array(*CA.diagnostics);
927 if (CA.isPreferred)
928 CodeAction["isPreferred"] = true;
929 if (CA.edit)
930 CodeAction["edit"] = *CA.edit;
931 if (CA.command)
932 CodeAction["command"] = *CA.command;
933 return std::move(CodeAction);
934}
935
936llvm::raw_ostream &operator<<(llvm::raw_ostream &O, const DocumentSymbol &S) {
937 return O << S.name << " - " << toJSON(S);
938}
939
940llvm::json::Value toJSON(const DocumentSymbol &S) {
941 llvm::json::Object Result{{.K: "name", .V: S.name},
942 {.K: "kind", .V: static_cast<int>(S.kind)},
943 {.K: "range", .V: S.range},
944 {.K: "selectionRange", .V: S.selectionRange}};
945
946 if (!S.detail.empty())
947 Result["detail"] = S.detail;
948 if (!S.children.empty())
949 Result["children"] = S.children;
950 if (S.deprecated)
951 Result["deprecated"] = true;
952 // FIXME: workaround for older gcc/clang
953 return std::move(Result);
954}
955
956llvm::json::Value toJSON(const WorkspaceEdit &WE) {
957 llvm::json::Object Result;
958 if (WE.changes) {
959 llvm::json::Object FileChanges;
960 for (auto &Change : *WE.changes)
961 FileChanges[Change.first] = llvm::json::Array(Change.second);
962 Result["changes"] = std::move(FileChanges);
963 }
964 if (WE.documentChanges)
965 Result["documentChanges"] = *WE.documentChanges;
966 if (!WE.changeAnnotations.empty()) {
967 llvm::json::Object ChangeAnnotations;
968 for (auto &Annotation : WE.changeAnnotations)
969 ChangeAnnotations[Annotation.first] = Annotation.second;
970 Result["changeAnnotations"] = std::move(ChangeAnnotations);
971 }
972 return Result;
973}
974
975bool fromJSON(const llvm::json::Value &Params, TweakArgs &A,
976 llvm::json::Path P) {
977 llvm::json::ObjectMapper O(Params, P);
978 return O && O.map(Prop: "file", Out&: A.file) && O.map(Prop: "selection", Out&: A.selection) &&
979 O.map(Prop: "tweakID", Out&: A.tweakID);
980}
981
982llvm::json::Value toJSON(const TweakArgs &A) {
983 return llvm::json::Object{
984 {.K: "tweakID", .V: A.tweakID}, {.K: "selection", .V: A.selection}, {.K: "file", .V: A.file}};
985}
986
987llvm::json::Value toJSON(const ApplyWorkspaceEditParams &Params) {
988 return llvm::json::Object{{.K: "edit", .V: Params.edit}};
989}
990
991bool fromJSON(const llvm::json::Value &Response, ApplyWorkspaceEditResponse &R,
992 llvm::json::Path P) {
993 llvm::json::ObjectMapper O(Response, P);
994 return O && O.map(Prop: "applied", Out&: R.applied) &&
995 O.map(Prop: "failureReason", Out&: R.failureReason);
996}
997
998bool fromJSON(const llvm::json::Value &Params, TextDocumentPositionParams &R,
999 llvm::json::Path P) {
1000 llvm::json::ObjectMapper O(Params, P);
1001 return O && O.map(Prop: "textDocument", Out&: R.textDocument) &&
1002 O.map(Prop: "position", Out&: R.position);
1003}
1004
1005bool fromJSON(const llvm::json::Value &Params, CompletionContext &R,
1006 llvm::json::Path P) {
1007 llvm::json::ObjectMapper O(Params, P);
1008 int TriggerKind;
1009 if (!O || !O.map(Prop: "triggerKind", Out&: TriggerKind) ||
1010 !mapOptOrNull(Params, Prop: "triggerCharacter", Out&: R.triggerCharacter, P))
1011 return false;
1012 R.triggerKind = static_cast<CompletionTriggerKind>(TriggerKind);
1013 return true;
1014}
1015
1016bool fromJSON(const llvm::json::Value &Params, CompletionParams &R,
1017 llvm::json::Path P) {
1018 if (!fromJSON(Params, R&: static_cast<TextDocumentPositionParams &>(R), P) ||
1019 !mapOptOrNull(Params, Prop: "limit", Out&: R.limit, P))
1020 return false;
1021 if (auto *Context = Params.getAsObject()->get(K: "context"))
1022 return fromJSON(Params: *Context, R&: R.context, P: P.field(Field: "context"));
1023 return true;
1024}
1025
1026static llvm::StringRef toTextKind(MarkupKind Kind) {
1027 switch (Kind) {
1028 case MarkupKind::PlainText:
1029 return "plaintext";
1030 case MarkupKind::Markdown:
1031 return "markdown";
1032 }
1033 llvm_unreachable("Invalid MarkupKind");
1034}
1035
1036bool fromJSON(const llvm::json::Value &V, MarkupKind &K, llvm::json::Path P) {
1037 auto Str = V.getAsString();
1038 if (!Str) {
1039 P.report(Message: "expected string");
1040 return false;
1041 }
1042 if (*Str == "plaintext")
1043 K = MarkupKind::PlainText;
1044 else if (*Str == "markdown")
1045 K = MarkupKind::Markdown;
1046 else {
1047 P.report(Message: "unknown markup kind");
1048 return false;
1049 }
1050 return true;
1051}
1052
1053llvm::raw_ostream &operator<<(llvm::raw_ostream &OS, MarkupKind K) {
1054 return OS << toTextKind(Kind: K);
1055}
1056
1057llvm::json::Value toJSON(const MarkupContent &MC) {
1058 if (MC.value.empty())
1059 return nullptr;
1060
1061 return llvm::json::Object{
1062 {.K: "kind", .V: toTextKind(Kind: MC.kind)},
1063 {.K: "value", .V: MC.value},
1064 };
1065}
1066
1067llvm::json::Value toJSON(const Hover &H) {
1068 llvm::json::Object Result{{.K: "contents", .V: toJSON(MC: H.contents)}};
1069
1070 if (H.range)
1071 Result["range"] = toJSON(P: *H.range);
1072
1073 return std::move(Result);
1074}
1075
1076bool fromJSON(const llvm::json::Value &E, CompletionItemKind &Out,
1077 llvm::json::Path P) {
1078 if (auto T = E.getAsInteger()) {
1079 if (*T < static_cast<int>(CompletionItemKind::Text) ||
1080 *T > static_cast<int>(CompletionItemKind::TypeParameter))
1081 return false;
1082 Out = static_cast<CompletionItemKind>(*T);
1083 return true;
1084 }
1085 return false;
1086}
1087
1088CompletionItemKind
1089adjustKindToCapability(CompletionItemKind Kind,
1090 CompletionItemKindBitset &SupportedCompletionItemKinds) {
1091 auto KindVal = static_cast<size_t>(Kind);
1092 if (KindVal >= CompletionItemKindMin &&
1093 KindVal <= SupportedCompletionItemKinds.size() &&
1094 SupportedCompletionItemKinds[KindVal])
1095 return Kind;
1096
1097 switch (Kind) {
1098 // Provide some fall backs for common kinds that are close enough.
1099 case CompletionItemKind::Folder:
1100 return CompletionItemKind::File;
1101 case CompletionItemKind::EnumMember:
1102 return CompletionItemKind::Enum;
1103 case CompletionItemKind::Struct:
1104 return CompletionItemKind::Class;
1105 default:
1106 return CompletionItemKind::Text;
1107 }
1108}
1109
1110bool fromJSON(const llvm::json::Value &E, CompletionItemKindBitset &Out,
1111 llvm::json::Path P) {
1112 if (auto *A = E.getAsArray()) {
1113 for (size_t I = 0; I < A->size(); ++I) {
1114 CompletionItemKind KindOut;
1115 if (fromJSON(E: (*A)[I], Out&: KindOut, P: P.index(Index: I)))
1116 Out.set(position: size_t(KindOut));
1117 }
1118 return true;
1119 }
1120 return false;
1121}
1122
1123llvm::json::Value toJSON(const CompletionItemLabelDetails &CD) {
1124 llvm::json::Object Result;
1125 if (!CD.detail.empty())
1126 Result["detail"] = CD.detail;
1127 if (!CD.description.empty())
1128 Result["description"] = CD.description;
1129 return Result;
1130}
1131
1132void removeCompletionLabelDetails(CompletionItem &C) {
1133 if (!C.labelDetails)
1134 return;
1135 if (!C.labelDetails->detail.empty())
1136 C.label += C.labelDetails->detail;
1137 if (!C.labelDetails->description.empty())
1138 C.label = C.labelDetails->description + C.label;
1139 C.labelDetails.reset();
1140}
1141
1142llvm::json::Value toJSON(const CompletionItem &CI) {
1143 assert(!CI.label.empty() && "completion item label is required");
1144 llvm::json::Object Result{{.K: "label", .V: CI.label}};
1145 if (CI.kind != CompletionItemKind::Missing)
1146 Result["kind"] = static_cast<int>(CI.kind);
1147 if (!CI.detail.empty())
1148 Result["detail"] = CI.detail;
1149 if (CI.labelDetails)
1150 Result["labelDetails"] = *CI.labelDetails;
1151 if (CI.documentation)
1152 Result["documentation"] = CI.documentation;
1153 if (!CI.sortText.empty())
1154 Result["sortText"] = CI.sortText;
1155 if (!CI.filterText.empty())
1156 Result["filterText"] = CI.filterText;
1157 if (!CI.insertText.empty())
1158 Result["insertText"] = CI.insertText;
1159 if (CI.insertTextFormat != InsertTextFormat::Missing)
1160 Result["insertTextFormat"] = static_cast<int>(CI.insertTextFormat);
1161 if (CI.textEdit)
1162 Result["textEdit"] = *CI.textEdit;
1163 if (!CI.additionalTextEdits.empty())
1164 Result["additionalTextEdits"] = llvm::json::Array(CI.additionalTextEdits);
1165 if (CI.deprecated)
1166 Result["deprecated"] = CI.deprecated;
1167 Result["score"] = CI.score;
1168 return std::move(Result);
1169}
1170
1171llvm::raw_ostream &operator<<(llvm::raw_ostream &O, const CompletionItem &I) {
1172 O << I.label << " - " << toJSON(CI: I);
1173 return O;
1174}
1175
1176bool operator<(const CompletionItem &L, const CompletionItem &R) {
1177 return (L.sortText.empty() ? L.label : L.sortText) <
1178 (R.sortText.empty() ? R.label : R.sortText);
1179}
1180
1181llvm::json::Value toJSON(const CompletionList &L) {
1182 return llvm::json::Object{
1183 {.K: "isIncomplete", .V: L.isIncomplete},
1184 {.K: "items", .V: llvm::json::Array(L.items)},
1185 };
1186}
1187
1188llvm::json::Value toJSON(const ParameterInformation &PI) {
1189 assert((PI.labelOffsets || !PI.labelString.empty()) &&
1190 "parameter information label is required");
1191 llvm::json::Object Result;
1192 if (PI.labelOffsets)
1193 Result["label"] =
1194 llvm::json::Array({PI.labelOffsets->first, PI.labelOffsets->second});
1195 else
1196 Result["label"] = PI.labelString;
1197 if (!PI.documentation.empty())
1198 Result["documentation"] = PI.documentation;
1199 return std::move(Result);
1200}
1201
1202llvm::json::Value toJSON(const SignatureInformation &SI) {
1203 assert(!SI.label.empty() && "signature information label is required");
1204 llvm::json::Object Result{
1205 {.K: "label", .V: SI.label},
1206 {.K: "parameters", .V: llvm::json::Array(SI.parameters)},
1207 };
1208 if (!SI.documentation.value.empty())
1209 Result["documentation"] = SI.documentation;
1210 return std::move(Result);
1211}
1212
1213llvm::raw_ostream &operator<<(llvm::raw_ostream &O,
1214 const SignatureInformation &I) {
1215 O << I.label << " - " << toJSON(SI: I);
1216 return O;
1217}
1218
1219llvm::json::Value toJSON(const SignatureHelp &SH) {
1220 assert(SH.activeSignature >= 0 &&
1221 "Unexpected negative value for number of active signatures.");
1222 assert(SH.activeParameter >= 0 &&
1223 "Unexpected negative value for active parameter index");
1224 return llvm::json::Object{
1225 {.K: "activeSignature", .V: SH.activeSignature},
1226 {.K: "activeParameter", .V: SH.activeParameter},
1227 {.K: "signatures", .V: llvm::json::Array(SH.signatures)},
1228 };
1229}
1230
1231bool fromJSON(const llvm::json::Value &Params, RenameParams &R,
1232 llvm::json::Path P) {
1233 llvm::json::ObjectMapper O(Params, P);
1234 return O && O.map(Prop: "textDocument", Out&: R.textDocument) &&
1235 O.map(Prop: "position", Out&: R.position) && O.map(Prop: "newName", Out&: R.newName);
1236}
1237
1238llvm::json::Value toJSON(const RenameParams &R) {
1239 return llvm::json::Object{
1240 {.K: "textDocument", .V: R.textDocument},
1241 {.K: "position", .V: R.position},
1242 {.K: "newName", .V: R.newName},
1243 };
1244}
1245
1246llvm::json::Value toJSON(const PrepareRenameResult &PRR) {
1247 if (PRR.placeholder.empty())
1248 return toJSON(P: PRR.range);
1249 return llvm::json::Object{
1250 {.K: "range", .V: toJSON(P: PRR.range)},
1251 {.K: "placeholder", .V: PRR.placeholder},
1252 };
1253}
1254
1255llvm::json::Value toJSON(const DocumentHighlight &DH) {
1256 return llvm::json::Object{
1257 {.K: "range", .V: toJSON(P: DH.range)},
1258 {.K: "kind", .V: static_cast<int>(DH.kind)},
1259 };
1260}
1261
1262llvm::json::Value toJSON(const FileStatus &FStatus) {
1263 return llvm::json::Object{
1264 {.K: "uri", .V: FStatus.uri},
1265 {.K: "state", .V: FStatus.state},
1266 };
1267}
1268
1269constexpr unsigned SemanticTokenEncodingSize = 5;
1270static llvm::json::Value encodeTokens(llvm::ArrayRef<SemanticToken> Toks) {
1271 llvm::json::Array Result;
1272 Result.reserve(S: SemanticTokenEncodingSize * Toks.size());
1273 for (const auto &Tok : Toks) {
1274 Result.push_back(E: Tok.deltaLine);
1275 Result.push_back(E: Tok.deltaStart);
1276 Result.push_back(E: Tok.length);
1277 Result.push_back(E: Tok.tokenType);
1278 Result.push_back(E: Tok.tokenModifiers);
1279 }
1280 assert(Result.size() == SemanticTokenEncodingSize * Toks.size());
1281 return std::move(Result);
1282}
1283
1284bool operator==(const SemanticToken &L, const SemanticToken &R) {
1285 return std::tie(args: L.deltaLine, args: L.deltaStart, args: L.length, args: L.tokenType,
1286 args: L.tokenModifiers) == std::tie(args: R.deltaLine, args: R.deltaStart,
1287 args: R.length, args: R.tokenType,
1288 args: R.tokenModifiers);
1289}
1290
1291llvm::json::Value toJSON(const SemanticTokens &Tokens) {
1292 return llvm::json::Object{{.K: "resultId", .V: Tokens.resultId},
1293 {.K: "data", .V: encodeTokens(Toks: Tokens.tokens)}};
1294}
1295
1296llvm::json::Value toJSON(const SemanticTokensEdit &Edit) {
1297 return llvm::json::Object{
1298 {.K: "start", .V: SemanticTokenEncodingSize * Edit.startToken},
1299 {.K: "deleteCount", .V: SemanticTokenEncodingSize * Edit.deleteTokens},
1300 {.K: "data", .V: encodeTokens(Toks: Edit.tokens)}};
1301}
1302
1303llvm::json::Value toJSON(const SemanticTokensOrDelta &TE) {
1304 llvm::json::Object Result{{.K: "resultId", .V: TE.resultId}};
1305 if (TE.edits)
1306 Result["edits"] = *TE.edits;
1307 if (TE.tokens)
1308 Result["data"] = encodeTokens(Toks: *TE.tokens);
1309 return std::move(Result);
1310}
1311
1312bool fromJSON(const llvm::json::Value &Params, SemanticTokensParams &R,
1313 llvm::json::Path P) {
1314 llvm::json::ObjectMapper O(Params, P);
1315 return O && O.map(Prop: "textDocument", Out&: R.textDocument);
1316}
1317
1318bool fromJSON(const llvm::json::Value &Params, SemanticTokensDeltaParams &R,
1319 llvm::json::Path P) {
1320 llvm::json::ObjectMapper O(Params, P);
1321 return O && O.map(Prop: "textDocument", Out&: R.textDocument) &&
1322 O.map(Prop: "previousResultId", Out&: R.previousResultId);
1323}
1324
1325llvm::json::Value toJSON(const InactiveRegionsParams &InactiveRegions) {
1326 return llvm::json::Object{
1327 {.K: "textDocument", .V: InactiveRegions.TextDocument},
1328 {.K: "regions", .V: std::move(InactiveRegions.InactiveRegions)}};
1329}
1330
1331llvm::raw_ostream &operator<<(llvm::raw_ostream &O,
1332 const DocumentHighlight &V) {
1333 O << V.range;
1334 if (V.kind == DocumentHighlightKind::Read)
1335 O << "(r)";
1336 if (V.kind == DocumentHighlightKind::Write)
1337 O << "(w)";
1338 return O;
1339}
1340
1341bool fromJSON(const llvm::json::Value &Params,
1342 DidChangeConfigurationParams &CCP, llvm::json::Path P) {
1343 llvm::json::ObjectMapper O(Params, P);
1344 return O && O.map(Prop: "settings", Out&: CCP.settings);
1345}
1346
1347bool fromJSON(const llvm::json::Value &Params, ClangdCompileCommand &CDbUpdate,
1348 llvm::json::Path P) {
1349 llvm::json::ObjectMapper O(Params, P);
1350 return O && O.map(Prop: "workingDirectory", Out&: CDbUpdate.workingDirectory) &&
1351 O.map(Prop: "compilationCommand", Out&: CDbUpdate.compilationCommand);
1352}
1353
1354bool fromJSON(const llvm::json::Value &Params, ConfigurationSettings &S,
1355 llvm::json::Path P) {
1356 llvm::json::ObjectMapper O(Params, P);
1357 if (!O)
1358 return true; // 'any' type in LSP.
1359 return mapOptOrNull(Params, Prop: "compilationDatabaseChanges",
1360 Out&: S.compilationDatabaseChanges, P);
1361}
1362
1363bool fromJSON(const llvm::json::Value &Params, InitializationOptions &Opts,
1364 llvm::json::Path P) {
1365 llvm::json::ObjectMapper O(Params, P);
1366 if (!O)
1367 return true; // 'any' type in LSP.
1368
1369 return fromJSON(Params, S&: Opts.ConfigSettings, P) &&
1370 O.map(Prop: "compilationDatabasePath", Out&: Opts.compilationDatabasePath) &&
1371 mapOptOrNull(Params, Prop: "fallbackFlags", Out&: Opts.fallbackFlags, P) &&
1372 mapOptOrNull(Params, Prop: "clangdFileStatus", Out&: Opts.FileStatus, P);
1373}
1374
1375bool fromJSON(const llvm::json::Value &E, TypeHierarchyDirection &Out,
1376 llvm::json::Path P) {
1377 auto T = E.getAsInteger();
1378 if (!T)
1379 return false;
1380 if (*T < static_cast<int>(TypeHierarchyDirection::Children) ||
1381 *T > static_cast<int>(TypeHierarchyDirection::Both))
1382 return false;
1383 Out = static_cast<TypeHierarchyDirection>(*T);
1384 return true;
1385}
1386
1387bool fromJSON(const llvm::json::Value &Params, TypeHierarchyPrepareParams &R,
1388 llvm::json::Path P) {
1389 llvm::json::ObjectMapper O(Params, P);
1390 return O && O.map(Prop: "textDocument", Out&: R.textDocument) &&
1391 O.map(Prop: "position", Out&: R.position) &&
1392 mapOptOrNull(Params, Prop: "resolve", Out&: R.resolve, P) &&
1393 mapOptOrNull(Params, Prop: "direction", Out&: R.direction, P);
1394}
1395
1396llvm::raw_ostream &operator<<(llvm::raw_ostream &O,
1397 const TypeHierarchyItem &I) {
1398 return O << I.name << " - " << toJSON(I);
1399}
1400
1401llvm::json::Value toJSON(const TypeHierarchyItem::ResolveParams &RP) {
1402 llvm::json::Object Result{{.K: "symbolID", .V: RP.symbolID}};
1403 if (RP.parents)
1404 Result["parents"] = RP.parents;
1405 return std::move(Result);
1406}
1407bool fromJSON(const llvm::json::Value &Params,
1408 TypeHierarchyItem::ResolveParams &RP, llvm::json::Path P) {
1409 llvm::json::ObjectMapper O(Params, P);
1410 return O && O.map(Prop: "symbolID", Out&: RP.symbolID) &&
1411 mapOptOrNull(Params, Prop: "parents", Out&: RP.parents, P);
1412}
1413
1414llvm::json::Value toJSON(const TypeHierarchyItem &I) {
1415 llvm::json::Object Result{
1416 {.K: "name", .V: I.name}, {.K: "kind", .V: static_cast<int>(I.kind)},
1417 {.K: "range", .V: I.range}, {.K: "selectionRange", .V: I.selectionRange},
1418 {.K: "uri", .V: I.uri}, {.K: "data", .V: I.data},
1419 };
1420
1421 if (I.detail)
1422 Result["detail"] = I.detail;
1423 return std::move(Result);
1424}
1425
1426bool fromJSON(const llvm::json::Value &Params, TypeHierarchyItem &I,
1427 llvm::json::Path P) {
1428 llvm::json::ObjectMapper O(Params, P);
1429
1430 // Required fields.
1431 return O && O.map(Prop: "name", Out&: I.name) && O.map(Prop: "kind", Out&: I.kind) &&
1432 O.map(Prop: "uri", Out&: I.uri) && O.map(Prop: "range", Out&: I.range) &&
1433 O.map(Prop: "selectionRange", Out&: I.selectionRange) &&
1434 mapOptOrNull(Params, Prop: "detail", Out&: I.detail, P) &&
1435 mapOptOrNull(Params, Prop: "deprecated", Out&: I.deprecated, P) &&
1436 mapOptOrNull(Params, Prop: "parents", Out&: I.parents, P) &&
1437 mapOptOrNull(Params, Prop: "children", Out&: I.children, P) &&
1438 mapOptOrNull(Params, Prop: "data", Out&: I.data, P);
1439}
1440
1441bool fromJSON(const llvm::json::Value &Params,
1442 ResolveTypeHierarchyItemParams &R, llvm::json::Path P) {
1443 llvm::json::ObjectMapper O(Params, P);
1444 return O && O.map(Prop: "item", Out&: R.item) &&
1445 mapOptOrNull(Params, Prop: "resolve", Out&: R.resolve, P) &&
1446 mapOptOrNull(Params, Prop: "direction", Out&: R.direction, P);
1447}
1448
1449bool fromJSON(const llvm::json::Value &Params, ReferenceContext &R,
1450 llvm::json::Path P) {
1451 llvm::json::ObjectMapper O(Params, P);
1452 return O && O.mapOptional(Prop: "includeDeclaration", Out&: R.includeDeclaration);
1453}
1454
1455bool fromJSON(const llvm::json::Value &Params, ReferenceParams &R,
1456 llvm::json::Path P) {
1457 TextDocumentPositionParams &Base = R;
1458 llvm::json::ObjectMapper O(Params, P);
1459 return fromJSON(Params, R&: Base, P) && O && O.mapOptional(Prop: "context", Out&: R.context);
1460}
1461
1462llvm::json::Value toJSON(SymbolTag Tag) {
1463 return llvm::json::Value(static_cast<int>(Tag));
1464}
1465
1466llvm::json::Value toJSON(const CallHierarchyItem &I) {
1467 llvm::json::Object Result{{.K: "name", .V: I.name},
1468 {.K: "kind", .V: static_cast<int>(I.kind)},
1469 {.K: "range", .V: I.range},
1470 {.K: "selectionRange", .V: I.selectionRange},
1471 {.K: "uri", .V: I.uri}};
1472 if (!I.tags.empty())
1473 Result["tags"] = I.tags;
1474 if (!I.detail.empty())
1475 Result["detail"] = I.detail;
1476 if (!I.data.empty())
1477 Result["data"] = I.data;
1478 return std::move(Result);
1479}
1480
1481bool fromJSON(const llvm::json::Value &Params, CallHierarchyItem &I,
1482 llvm::json::Path P) {
1483 llvm::json::ObjectMapper O(Params, P);
1484
1485 // Populate the required fields only. We don't care about the
1486 // optional fields `Tags` and `Detail` for the purpose of
1487 // client --> server communication.
1488 return O && O.map(Prop: "name", Out&: I.name) && O.map(Prop: "kind", Out&: I.kind) &&
1489 O.map(Prop: "uri", Out&: I.uri) && O.map(Prop: "range", Out&: I.range) &&
1490 O.map(Prop: "selectionRange", Out&: I.selectionRange) &&
1491 mapOptOrNull(Params, Prop: "data", Out&: I.data, P);
1492}
1493
1494bool fromJSON(const llvm::json::Value &Params,
1495 CallHierarchyIncomingCallsParams &C, llvm::json::Path P) {
1496 llvm::json::ObjectMapper O(Params, P);
1497 return O.map(Prop: "item", Out&: C.item);
1498}
1499
1500llvm::json::Value toJSON(const CallHierarchyIncomingCall &C) {
1501 return llvm::json::Object{{.K: "from", .V: C.from}, {.K: "fromRanges", .V: C.fromRanges}};
1502}
1503
1504bool fromJSON(const llvm::json::Value &Params,
1505 CallHierarchyOutgoingCallsParams &C, llvm::json::Path P) {
1506 llvm::json::ObjectMapper O(Params, P);
1507 return O.map(Prop: "item", Out&: C.item);
1508}
1509
1510llvm::json::Value toJSON(const CallHierarchyOutgoingCall &C) {
1511 return llvm::json::Object{{.K: "to", .V: C.to}, {.K: "fromRanges", .V: C.fromRanges}};
1512}
1513
1514bool fromJSON(const llvm::json::Value &Params, InlayHintsParams &R,
1515 llvm::json::Path P) {
1516 llvm::json::ObjectMapper O(Params, P);
1517 return O && O.map(Prop: "textDocument", Out&: R.textDocument) && O.map(Prop: "range", Out&: R.range);
1518}
1519
1520llvm::json::Value toJSON(const InlayHintKind &Kind) {
1521 switch (Kind) {
1522 case InlayHintKind::Type:
1523 return 1;
1524 case InlayHintKind::Parameter:
1525 return 2;
1526 case InlayHintKind::Designator:
1527 case InlayHintKind::BlockEnd:
1528 case InlayHintKind::DefaultArgument:
1529 // This is an extension, don't serialize.
1530 return nullptr;
1531 }
1532 llvm_unreachable("Unknown clang.clangd.InlayHintKind");
1533}
1534
1535llvm::json::Value toJSON(const InlayHint &H) {
1536 llvm::json::Object Result{{.K: "position", .V: H.position},
1537 {.K: "label", .V: H.label},
1538 {.K: "paddingLeft", .V: H.paddingLeft},
1539 {.K: "paddingRight", .V: H.paddingRight}};
1540 auto K = toJSON(Kind: H.kind);
1541 if (!K.getAsNull())
1542 Result["kind"] = std::move(K);
1543 return std::move(Result);
1544}
1545bool operator==(const InlayHint &A, const InlayHint &B) {
1546 return std::tie(args: A.position, args: A.range, args: A.kind, args: A.label) ==
1547 std::tie(args: B.position, args: B.range, args: B.kind, args: B.label);
1548}
1549bool operator<(const InlayHint &A, const InlayHint &B) {
1550 return std::tie(args: A.position, args: A.range, args: A.kind, args: A.label) <
1551 std::tie(args: B.position, args: B.range, args: B.kind, args: B.label);
1552}
1553std::string InlayHint::joinLabels() const {
1554 return llvm::join(R: llvm::map_range(C: label, F: [](auto &L) { return L.value; }),
1555 Separator: "");
1556}
1557
1558llvm::raw_ostream &operator<<(llvm::raw_ostream &OS, InlayHintKind Kind) {
1559 auto ToString = [](InlayHintKind K) {
1560 switch (K) {
1561 case InlayHintKind::Parameter:
1562 return "parameter";
1563 case InlayHintKind::Type:
1564 return "type";
1565 case InlayHintKind::Designator:
1566 return "designator";
1567 case InlayHintKind::BlockEnd:
1568 return "block-end";
1569 case InlayHintKind::DefaultArgument:
1570 return "default-argument";
1571 }
1572 llvm_unreachable("Unknown clang.clangd.InlayHintKind");
1573 };
1574 return OS << ToString(Kind);
1575}
1576
1577llvm::json::Value toJSON(const InlayHintLabelPart &L) {
1578 llvm::json::Object Result{{.K: "value", .V: L.value}};
1579 if (L.tooltip)
1580 Result["tooltip"] = *L.tooltip;
1581 if (L.location)
1582 Result["location"] = *L.location;
1583 if (L.command)
1584 Result["command"] = *L.command;
1585 return Result;
1586}
1587
1588bool operator==(const InlayHintLabelPart &LHS, const InlayHintLabelPart &RHS) {
1589 return std::tie(args: LHS.value, args: LHS.location) == std::tie(args: RHS.value, args: RHS.location);
1590}
1591
1592bool operator<(const InlayHintLabelPart &LHS, const InlayHintLabelPart &RHS) {
1593 return std::tie(args: LHS.value, args: LHS.location) < std::tie(args: RHS.value, args: RHS.location);
1594}
1595
1596llvm::raw_ostream &operator<<(llvm::raw_ostream &OS,
1597 const InlayHintLabelPart &L) {
1598 OS << L.value;
1599 if (L.location)
1600 OS << " (" << L.location << ")";
1601 return OS;
1602}
1603
1604static const char *toString(OffsetEncoding OE) {
1605 switch (OE) {
1606 case OffsetEncoding::UTF8:
1607 return "utf-8";
1608 case OffsetEncoding::UTF16:
1609 return "utf-16";
1610 case OffsetEncoding::UTF32:
1611 return "utf-32";
1612 case OffsetEncoding::UnsupportedEncoding:
1613 return "unknown";
1614 }
1615 llvm_unreachable("Unknown clang.clangd.OffsetEncoding");
1616}
1617llvm::json::Value toJSON(const OffsetEncoding &OE) { return toString(OE); }
1618bool fromJSON(const llvm::json::Value &V, OffsetEncoding &OE,
1619 llvm::json::Path P) {
1620 auto Str = V.getAsString();
1621 if (!Str)
1622 return false;
1623 OE = llvm::StringSwitch<OffsetEncoding>(*Str)
1624 .Case(S: "utf-8", Value: OffsetEncoding::UTF8)
1625 .Case(S: "utf-16", Value: OffsetEncoding::UTF16)
1626 .Case(S: "utf-32", Value: OffsetEncoding::UTF32)
1627 .Default(Value: OffsetEncoding::UnsupportedEncoding);
1628 return true;
1629}
1630llvm::raw_ostream &operator<<(llvm::raw_ostream &OS, OffsetEncoding Enc) {
1631 return OS << toString(OE: Enc);
1632}
1633
1634bool fromJSON(const llvm::json::Value &Params, SelectionRangeParams &S,
1635 llvm::json::Path P) {
1636 llvm::json::ObjectMapper O(Params, P);
1637 return O && O.map(Prop: "textDocument", Out&: S.textDocument) &&
1638 O.map(Prop: "positions", Out&: S.positions);
1639}
1640
1641llvm::json::Value toJSON(const SelectionRange &Out) {
1642 if (Out.parent) {
1643 return llvm::json::Object{{.K: "range", .V: Out.range},
1644 {.K: "parent", .V: toJSON(Out: *Out.parent)}};
1645 }
1646 return llvm::json::Object{{.K: "range", .V: Out.range}};
1647}
1648
1649bool fromJSON(const llvm::json::Value &Params, DocumentLinkParams &R,
1650 llvm::json::Path P) {
1651 llvm::json::ObjectMapper O(Params, P);
1652 return O && O.map(Prop: "textDocument", Out&: R.textDocument);
1653}
1654
1655llvm::json::Value toJSON(const DocumentLink &DocumentLink) {
1656 return llvm::json::Object{
1657 {.K: "range", .V: DocumentLink.range},
1658 {.K: "target", .V: DocumentLink.target},
1659 };
1660}
1661
1662bool fromJSON(const llvm::json::Value &Params, FoldingRangeParams &R,
1663 llvm::json::Path P) {
1664 llvm::json::ObjectMapper O(Params, P);
1665 return O && O.map(Prop: "textDocument", Out&: R.textDocument);
1666}
1667
1668const llvm::StringLiteral FoldingRange::REGION_KIND = "region";
1669const llvm::StringLiteral FoldingRange::COMMENT_KIND = "comment";
1670const llvm::StringLiteral FoldingRange::IMPORT_KIND = "import";
1671
1672llvm::json::Value toJSON(const FoldingRange &Range) {
1673 llvm::json::Object Result{
1674 {.K: "startLine", .V: Range.startLine},
1675 {.K: "endLine", .V: Range.endLine},
1676 };
1677 if (Range.startCharacter)
1678 Result["startCharacter"] = Range.startCharacter;
1679 if (Range.endCharacter)
1680 Result["endCharacter"] = Range.endCharacter;
1681 if (!Range.kind.empty())
1682 Result["kind"] = Range.kind;
1683 return Result;
1684}
1685
1686llvm::json::Value toJSON(const MemoryTree &MT) {
1687 llvm::json::Object Out;
1688 int64_t Total = MT.self();
1689 Out["_self"] = Total;
1690 for (const auto &Entry : MT.children()) {
1691 auto Child = toJSON(MT: Entry.getSecond());
1692 Total += *Child.getAsObject()->getInteger(K: "_total");
1693 Out[Entry.first] = std::move(Child);
1694 }
1695 Out["_total"] = Total;
1696 return Out;
1697}
1698
1699bool fromJSON(const llvm::json::Value &Params, ASTParams &R,
1700 llvm::json::Path P) {
1701 llvm::json::ObjectMapper O(Params, P);
1702 return O && O.map(Prop: "textDocument", Out&: R.textDocument) && O.map(Prop: "range", Out&: R.range);
1703}
1704
1705llvm::json::Value toJSON(const ASTNode &N) {
1706 llvm::json::Object Result{
1707 {.K: "role", .V: N.role},
1708 {.K: "kind", .V: N.kind},
1709 };
1710 if (!N.children.empty())
1711 Result["children"] = N.children;
1712 if (!N.detail.empty())
1713 Result["detail"] = N.detail;
1714 if (!N.arcana.empty())
1715 Result["arcana"] = N.arcana;
1716 if (N.range)
1717 Result["range"] = *N.range;
1718 return Result;
1719}
1720
1721llvm::raw_ostream &operator<<(llvm::raw_ostream &OS, const ASTNode &Root) {
1722 std::function<void(const ASTNode &, unsigned)> Print = [&](const ASTNode &N,
1723 unsigned Level) {
1724 OS.indent(NumSpaces: 2 * Level) << N.role << ": " << N.kind;
1725 if (!N.detail.empty())
1726 OS << " - " << N.detail;
1727 OS << "\n";
1728 for (const ASTNode &C : N.children)
1729 Print(C, Level + 1);
1730 };
1731 Print(Root, 0);
1732 return OS;
1733}
1734
1735bool fromJSON(const llvm::json::Value &E, SymbolID &S, llvm::json::Path P) {
1736 auto Str = E.getAsString();
1737 if (!Str) {
1738 P.report(Message: "expected a string");
1739 return false;
1740 }
1741 auto ID = SymbolID::fromStr(*Str);
1742 if (!ID) {
1743 elog(Fmt: "Malformed symbolid: {0}", Vals: ID.takeError());
1744 P.report(Message: "malformed symbolid");
1745 return false;
1746 }
1747 S = *ID;
1748 return true;
1749}
1750llvm::json::Value toJSON(const SymbolID &S) { return S.str(); }
1751
1752} // namespace clangd
1753} // namespace clang
1754

source code of clang-tools-extra/clangd/Protocol.cpp