/
Protocol.cpp
1483 lines (1324 loc) · 47.4 KB
/
Protocol.cpp
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//===--- Protocol.cpp - Language Server Protocol Implementation -----------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
//
// This file contains the serialization code for the LSP structs.
//
//===----------------------------------------------------------------------===//
#include "Protocol.h"
#include "URI.h"
#include "support/Logger.h"
#include "clang/Basic/LLVM.h"
#include "clang/Index/IndexSymbol.h"
#include "llvm/ADT/StringRef.h"
#include "llvm/ADT/StringSwitch.h"
#include "llvm/Support/ErrorHandling.h"
#include "llvm/Support/JSON.h"
#include "llvm/Support/Path.h"
#include "llvm/Support/raw_ostream.h"
namespace clang {
namespace clangd {
namespace {
// Helper that doesn't treat `null` and absent fields as failures.
template <typename T>
bool mapOptOrNull(const llvm::json::Value &Params, llvm::StringLiteral Prop,
T &Out, llvm::json::Path P) {
auto *O = Params.getAsObject();
assert(O);
auto *V = O->get(Prop);
// Field is missing or null.
if (!V || V->getAsNull().hasValue())
return true;
return fromJSON(*V, Out, P.field(Prop));
}
} // namespace
char LSPError::ID;
URIForFile URIForFile::canonicalize(llvm::StringRef AbsPath,
llvm::StringRef TUPath) {
assert(llvm::sys::path::is_absolute(AbsPath) && "the path is relative");
auto Resolved = URI::resolvePath(AbsPath, TUPath);
if (!Resolved) {
elog("URIForFile: failed to resolve path {0} with TU path {1}: "
"{2}.\nUsing unresolved path.",
AbsPath, TUPath, Resolved.takeError());
return URIForFile(std::string(AbsPath));
}
return URIForFile(std::move(*Resolved));
}
llvm::Expected<URIForFile> URIForFile::fromURI(const URI &U,
llvm::StringRef HintPath) {
auto Resolved = URI::resolve(U, HintPath);
if (!Resolved)
return Resolved.takeError();
return URIForFile(std::move(*Resolved));
}
bool fromJSON(const llvm::json::Value &E, URIForFile &R, llvm::json::Path P) {
if (auto S = E.getAsString()) {
auto Parsed = URI::parse(*S);
if (!Parsed) {
consumeError(Parsed.takeError());
P.report("failed to parse URI");
return false;
}
if (Parsed->scheme() != "file" && Parsed->scheme() != "test") {
P.report("clangd only supports 'file' URI scheme for workspace files");
return false;
}
// "file" and "test" schemes do not require hint path.
auto U = URIForFile::fromURI(*Parsed, /*HintPath=*/"");
if (!U) {
P.report("unresolvable URI");
consumeError(U.takeError());
return false;
}
R = std::move(*U);
return true;
}
return false;
}
llvm::json::Value toJSON(const URIForFile &U) { return U.uri(); }
llvm::raw_ostream &operator<<(llvm::raw_ostream &OS, const URIForFile &U) {
return OS << U.uri();
}
llvm::json::Value toJSON(const TextDocumentIdentifier &R) {
return llvm::json::Object{{"uri", R.uri}};
}
bool fromJSON(const llvm::json::Value &Params, TextDocumentIdentifier &R,
llvm::json::Path P) {
llvm::json::ObjectMapper O(Params, P);
return O && O.map("uri", R.uri);
}
llvm::json::Value toJSON(const VersionedTextDocumentIdentifier &R) {
auto Result = toJSON(static_cast<const TextDocumentIdentifier &>(R));
Result.getAsObject()->try_emplace("version", R.version);
return Result;
}
bool fromJSON(const llvm::json::Value &Params,
VersionedTextDocumentIdentifier &R, llvm::json::Path P) {
llvm::json::ObjectMapper O(Params, P);
return fromJSON(Params, static_cast<TextDocumentIdentifier &>(R), P) && O &&
O.map("version", R.version);
}
bool fromJSON(const llvm::json::Value &Params, Position &R,
llvm::json::Path P) {
llvm::json::ObjectMapper O(Params, P);
return O && O.map("line", R.line) && O.map("character", R.character);
}
llvm::json::Value toJSON(const Position &P) {
return llvm::json::Object{
{"line", P.line},
{"character", P.character},
};
}
llvm::raw_ostream &operator<<(llvm::raw_ostream &OS, const Position &P) {
return OS << P.line << ':' << P.character;
}
bool fromJSON(const llvm::json::Value &Params, Range &R, llvm::json::Path P) {
llvm::json::ObjectMapper O(Params, P);
return O && O.map("start", R.start) && O.map("end", R.end);
}
llvm::json::Value toJSON(const Range &P) {
return llvm::json::Object{
{"start", P.start},
{"end", P.end},
};
}
llvm::raw_ostream &operator<<(llvm::raw_ostream &OS, const Range &R) {
return OS << R.start << '-' << R.end;
}
llvm::json::Value toJSON(const Location &P) {
return llvm::json::Object{
{"uri", P.uri},
{"range", P.range},
};
}
llvm::raw_ostream &operator<<(llvm::raw_ostream &OS, const Location &L) {
return OS << L.range << '@' << L.uri;
}
bool fromJSON(const llvm::json::Value &Params, TextDocumentItem &R,
llvm::json::Path P) {
llvm::json::ObjectMapper O(Params, P);
return O && O.map("uri", R.uri) && O.map("languageId", R.languageId) &&
O.map("version", R.version) && O.map("text", R.text);
}
bool fromJSON(const llvm::json::Value &Params, TextEdit &R,
llvm::json::Path P) {
llvm::json::ObjectMapper O(Params, P);
return O && O.map("range", R.range) && O.map("newText", R.newText);
}
llvm::json::Value toJSON(const TextEdit &P) {
return llvm::json::Object{
{"range", P.range},
{"newText", P.newText},
};
}
llvm::raw_ostream &operator<<(llvm::raw_ostream &OS, const TextEdit &TE) {
OS << TE.range << " => \"";
llvm::printEscapedString(TE.newText, OS);
return OS << '"';
}
bool fromJSON(const llvm::json::Value &E, TraceLevel &Out, llvm::json::Path P) {
if (auto S = E.getAsString()) {
if (*S == "off") {
Out = TraceLevel::Off;
return true;
}
if (*S == "messages") {
Out = TraceLevel::Messages;
return true;
}
if (*S == "verbose") {
Out = TraceLevel::Verbose;
return true;
}
}
return false;
}
bool fromJSON(const llvm::json::Value &E, SymbolKind &Out, llvm::json::Path P) {
if (auto T = E.getAsInteger()) {
if (*T < static_cast<int>(SymbolKind::File) ||
*T > static_cast<int>(SymbolKind::TypeParameter))
return false;
Out = static_cast<SymbolKind>(*T);
return true;
}
return false;
}
bool fromJSON(const llvm::json::Value &E, SymbolKindBitset &Out,
llvm::json::Path P) {
if (auto *A = E.getAsArray()) {
for (size_t I = 0; I < A->size(); ++I) {
SymbolKind KindOut;
if (fromJSON((*A)[I], KindOut, P.index(I)))
Out.set(size_t(KindOut));
}
return true;
}
return false;
}
SymbolKind adjustKindToCapability(SymbolKind Kind,
SymbolKindBitset &SupportedSymbolKinds) {
auto KindVal = static_cast<size_t>(Kind);
if (KindVal >= SymbolKindMin && KindVal <= SupportedSymbolKinds.size() &&
SupportedSymbolKinds[KindVal])
return Kind;
switch (Kind) {
// Provide some fall backs for common kinds that are close enough.
case SymbolKind::Struct:
return SymbolKind::Class;
case SymbolKind::EnumMember:
return SymbolKind::Enum;
default:
return SymbolKind::String;
}
}
SymbolKind indexSymbolKindToSymbolKind(index::SymbolKind Kind) {
switch (Kind) {
case index::SymbolKind::Unknown:
return SymbolKind::Variable;
case index::SymbolKind::Module:
return SymbolKind::Module;
case index::SymbolKind::Namespace:
return SymbolKind::Namespace;
case index::SymbolKind::NamespaceAlias:
return SymbolKind::Namespace;
case index::SymbolKind::Macro:
return SymbolKind::String;
case index::SymbolKind::Enum:
return SymbolKind::Enum;
case index::SymbolKind::Struct:
return SymbolKind::Struct;
case index::SymbolKind::Class:
return SymbolKind::Class;
case index::SymbolKind::Protocol:
return SymbolKind::Interface;
case index::SymbolKind::Extension:
return SymbolKind::Interface;
case index::SymbolKind::Union:
return SymbolKind::Class;
case index::SymbolKind::TypeAlias:
return SymbolKind::Class;
case index::SymbolKind::Function:
return SymbolKind::Function;
case index::SymbolKind::Variable:
return SymbolKind::Variable;
case index::SymbolKind::Field:
return SymbolKind::Field;
case index::SymbolKind::EnumConstant:
return SymbolKind::EnumMember;
case index::SymbolKind::InstanceMethod:
case index::SymbolKind::ClassMethod:
case index::SymbolKind::StaticMethod:
return SymbolKind::Method;
case index::SymbolKind::InstanceProperty:
case index::SymbolKind::ClassProperty:
case index::SymbolKind::StaticProperty:
return SymbolKind::Property;
case index::SymbolKind::Constructor:
case index::SymbolKind::Destructor:
return SymbolKind::Constructor;
case index::SymbolKind::ConversionFunction:
return SymbolKind::Function;
case index::SymbolKind::Parameter:
case index::SymbolKind::NonTypeTemplateParm:
return SymbolKind::Variable;
case index::SymbolKind::Using:
return SymbolKind::Namespace;
case index::SymbolKind::TemplateTemplateParm:
case index::SymbolKind::TemplateTypeParm:
return SymbolKind::TypeParameter;
case index::SymbolKind::Concept:
return SymbolKind::Interface;
}
llvm_unreachable("invalid symbol kind");
}
bool fromJSON(const llvm::json::Value &Params, ClientCapabilities &R,
llvm::json::Path P) {
const llvm::json::Object *O = Params.getAsObject();
if (!O) {
P.report("expected object");
return false;
}
if (auto *TextDocument = O->getObject("textDocument")) {
if (auto *SemanticHighlighting =
TextDocument->getObject("semanticHighlightingCapabilities")) {
if (auto SemanticHighlightingSupport =
SemanticHighlighting->getBoolean("semanticHighlighting"))
R.TheiaSemanticHighlighting = *SemanticHighlightingSupport;
}
if (TextDocument->getObject("semanticTokens"))
R.SemanticTokens = true;
if (auto *Diagnostics = TextDocument->getObject("publishDiagnostics")) {
if (auto CategorySupport = Diagnostics->getBoolean("categorySupport"))
R.DiagnosticCategory = *CategorySupport;
if (auto CodeActions = Diagnostics->getBoolean("codeActionsInline"))
R.DiagnosticFixes = *CodeActions;
if (auto RelatedInfo = Diagnostics->getBoolean("relatedInformation"))
R.DiagnosticRelatedInformation = *RelatedInfo;
}
if (auto *Completion = TextDocument->getObject("completion")) {
if (auto *Item = Completion->getObject("completionItem")) {
if (auto SnippetSupport = Item->getBoolean("snippetSupport"))
R.CompletionSnippets = *SnippetSupport;
if (const auto *DocumentationFormat =
Item->getArray("documentationFormat")) {
for (const auto &Format : *DocumentationFormat) {
if (fromJSON(Format, R.CompletionDocumentationFormat, P))
break;
}
}
}
if (auto *ItemKind = Completion->getObject("completionItemKind")) {
if (auto *ValueSet = ItemKind->get("valueSet")) {
R.CompletionItemKinds.emplace();
if (!fromJSON(*ValueSet, *R.CompletionItemKinds,
P.field("textDocument")
.field("completion")
.field("completionItemKind")
.field("valueSet")))
return false;
}
}
if (auto EditsNearCursor = Completion->getBoolean("editsNearCursor"))
R.CompletionFixes = *EditsNearCursor;
}
if (auto *CodeAction = TextDocument->getObject("codeAction")) {
if (CodeAction->getObject("codeActionLiteralSupport"))
R.CodeActionStructure = true;
}
if (auto *DocumentSymbol = TextDocument->getObject("documentSymbol")) {
if (auto HierarchicalSupport =
DocumentSymbol->getBoolean("hierarchicalDocumentSymbolSupport"))
R.HierarchicalDocumentSymbol = *HierarchicalSupport;
}
if (auto *Hover = TextDocument->getObject("hover")) {
if (auto *ContentFormat = Hover->getArray("contentFormat")) {
for (const auto &Format : *ContentFormat) {
if (fromJSON(Format, R.HoverContentFormat, P))
break;
}
}
}
if (auto *Help = TextDocument->getObject("signatureHelp")) {
R.HasSignatureHelp = true;
if (auto *Info = Help->getObject("signatureInformation")) {
if (auto *Parameter = Info->getObject("parameterInformation")) {
if (auto OffsetSupport = Parameter->getBoolean("labelOffsetSupport"))
R.OffsetsInSignatureHelp = *OffsetSupport;
}
if (const auto *DocumentationFormat =
Info->getArray("documentationFormat")) {
for (const auto &Format : *DocumentationFormat) {
if (fromJSON(Format, R.SignatureHelpDocumentationFormat, P))
break;
}
}
}
}
if (auto *Rename = TextDocument->getObject("rename")) {
if (auto RenameSupport = Rename->getBoolean("prepareSupport"))
R.RenamePrepareSupport = *RenameSupport;
}
}
if (auto *Workspace = O->getObject("workspace")) {
if (auto *Symbol = Workspace->getObject("symbol")) {
if (auto *SymbolKind = Symbol->getObject("symbolKind")) {
if (auto *ValueSet = SymbolKind->get("valueSet")) {
R.WorkspaceSymbolKinds.emplace();
if (!fromJSON(*ValueSet, *R.WorkspaceSymbolKinds,
P.field("workspace")
.field("symbol")
.field("symbolKind")
.field("valueSet")))
return false;
}
}
}
if (auto *SemanticTokens = Workspace->getObject("semanticTokens")) {
if (auto RefreshSupport = SemanticTokens->getBoolean("refreshSupport"))
R.SemanticTokenRefreshSupport = *RefreshSupport;
}
}
if (auto *Window = O->getObject("window")) {
if (auto WorkDoneProgress = Window->getBoolean("workDoneProgress"))
R.WorkDoneProgress = *WorkDoneProgress;
if (auto Implicit = Window->getBoolean("implicitWorkDoneProgressCreate"))
R.ImplicitProgressCreation = *Implicit;
}
if (auto *General = O->getObject("general")) {
if (auto *StaleRequestSupport = General->getObject("staleRequestSupport")) {
if (auto Cancel = StaleRequestSupport->getBoolean("cancel"))
R.CancelsStaleRequests = *Cancel;
}
}
if (auto *OffsetEncoding = O->get("offsetEncoding")) {
R.offsetEncoding.emplace();
if (!fromJSON(*OffsetEncoding, *R.offsetEncoding,
P.field("offsetEncoding")))
return false;
}
return true;
}
bool fromJSON(const llvm::json::Value &Params, InitializeParams &R,
llvm::json::Path P) {
llvm::json::ObjectMapper O(Params, P);
if (!O)
return false;
// We deliberately don't fail if we can't parse individual fields.
// Failing to handle a slightly malformed initialize would be a disaster.
O.map("processId", R.processId);
O.map("rootUri", R.rootUri);
O.map("rootPath", R.rootPath);
O.map("capabilities", R.capabilities);
if (auto *RawCaps = Params.getAsObject()->getObject("capabilities"))
R.rawCapabilities = *RawCaps;
O.map("trace", R.trace);
O.map("initializationOptions", R.initializationOptions);
return true;
}
llvm::json::Value toJSON(const WorkDoneProgressCreateParams &P) {
return llvm::json::Object{{"token", P.token}};
}
llvm::json::Value toJSON(const WorkDoneProgressBegin &P) {
llvm::json::Object Result{
{"kind", "begin"},
{"title", P.title},
};
if (P.cancellable)
Result["cancellable"] = true;
if (P.percentage)
Result["percentage"] = 0;
// FIXME: workaround for older gcc/clang
return std::move(Result);
}
llvm::json::Value toJSON(const WorkDoneProgressReport &P) {
llvm::json::Object Result{{"kind", "report"}};
if (P.cancellable)
Result["cancellable"] = *P.cancellable;
if (P.message)
Result["message"] = *P.message;
if (P.percentage)
Result["percentage"] = *P.percentage;
// FIXME: workaround for older gcc/clang
return std::move(Result);
}
llvm::json::Value toJSON(const WorkDoneProgressEnd &P) {
llvm::json::Object Result{{"kind", "end"}};
if (P.message)
Result["message"] = *P.message;
// FIXME: workaround for older gcc/clang
return std::move(Result);
}
llvm::json::Value toJSON(const MessageType &R) {
return static_cast<int64_t>(R);
}
llvm::json::Value toJSON(const ShowMessageParams &R) {
return llvm::json::Object{{"type", R.type}, {"message", R.message}};
}
bool fromJSON(const llvm::json::Value &Params, DidOpenTextDocumentParams &R,
llvm::json::Path P) {
llvm::json::ObjectMapper O(Params, P);
return O && O.map("textDocument", R.textDocument);
}
bool fromJSON(const llvm::json::Value &Params, DidCloseTextDocumentParams &R,
llvm::json::Path P) {
llvm::json::ObjectMapper O(Params, P);
return O && O.map("textDocument", R.textDocument);
}
bool fromJSON(const llvm::json::Value &Params, DidSaveTextDocumentParams &R,
llvm::json::Path P) {
llvm::json::ObjectMapper O(Params, P);
return O && O.map("textDocument", R.textDocument);
}
bool fromJSON(const llvm::json::Value &Params, DidChangeTextDocumentParams &R,
llvm::json::Path P) {
llvm::json::ObjectMapper O(Params, P);
return O && O.map("textDocument", R.textDocument) &&
O.map("contentChanges", R.contentChanges) &&
O.map("wantDiagnostics", R.wantDiagnostics) &&
mapOptOrNull(Params, "forceRebuild", R.forceRebuild, P);
}
bool fromJSON(const llvm::json::Value &E, FileChangeType &Out,
llvm::json::Path P) {
if (auto T = E.getAsInteger()) {
if (*T < static_cast<int>(FileChangeType::Created) ||
*T > static_cast<int>(FileChangeType::Deleted))
return false;
Out = static_cast<FileChangeType>(*T);
return true;
}
return false;
}
bool fromJSON(const llvm::json::Value &Params, FileEvent &R,
llvm::json::Path P) {
llvm::json::ObjectMapper O(Params, P);
return O && O.map("uri", R.uri) && O.map("type", R.type);
}
bool fromJSON(const llvm::json::Value &Params, DidChangeWatchedFilesParams &R,
llvm::json::Path P) {
llvm::json::ObjectMapper O(Params, P);
return O && O.map("changes", R.changes);
}
bool fromJSON(const llvm::json::Value &Params,
TextDocumentContentChangeEvent &R, llvm::json::Path P) {
llvm::json::ObjectMapper O(Params, P);
return O && O.map("range", R.range) && O.map("rangeLength", R.rangeLength) &&
O.map("text", R.text);
}
bool fromJSON(const llvm::json::Value &Params, DocumentRangeFormattingParams &R,
llvm::json::Path P) {
llvm::json::ObjectMapper O(Params, P);
return O && O.map("textDocument", R.textDocument) && O.map("range", R.range);
}
bool fromJSON(const llvm::json::Value &Params,
DocumentOnTypeFormattingParams &R, llvm::json::Path P) {
llvm::json::ObjectMapper O(Params, P);
return O && O.map("textDocument", R.textDocument) &&
O.map("position", R.position) && O.map("ch", R.ch);
}
bool fromJSON(const llvm::json::Value &Params, DocumentFormattingParams &R,
llvm::json::Path P) {
llvm::json::ObjectMapper O(Params, P);
return O && O.map("textDocument", R.textDocument);
}
bool fromJSON(const llvm::json::Value &Params, DocumentSymbolParams &R,
llvm::json::Path P) {
llvm::json::ObjectMapper O(Params, P);
return O && O.map("textDocument", R.textDocument);
}
llvm::json::Value toJSON(const DiagnosticRelatedInformation &DRI) {
return llvm::json::Object{
{"location", DRI.location},
{"message", DRI.message},
};
}
llvm::json::Value toJSON(DiagnosticTag Tag) { return static_cast<int>(Tag); }
llvm::json::Value toJSON(const Diagnostic &D) {
llvm::json::Object Diag{
{"range", D.range},
{"severity", D.severity},
{"message", D.message},
};
if (D.category)
Diag["category"] = *D.category;
if (D.codeActions)
Diag["codeActions"] = D.codeActions;
if (!D.code.empty())
Diag["code"] = D.code;
if (!D.source.empty())
Diag["source"] = D.source;
if (D.relatedInformation)
Diag["relatedInformation"] = *D.relatedInformation;
if (!D.data.empty())
Diag["data"] = llvm::json::Object(D.data);
if (!D.tags.empty())
Diag["tags"] = llvm::json::Array{D.tags};
// FIXME: workaround for older gcc/clang
return std::move(Diag);
}
bool fromJSON(const llvm::json::Value &Params, Diagnostic &R,
llvm::json::Path P) {
llvm::json::ObjectMapper O(Params, P);
if (!O)
return false;
if (auto *Data = Params.getAsObject()->getObject("data"))
R.data = *Data;
return O.map("range", R.range) && O.map("message", R.message) &&
mapOptOrNull(Params, "severity", R.severity, P) &&
mapOptOrNull(Params, "category", R.category, P) &&
mapOptOrNull(Params, "code", R.code, P) &&
mapOptOrNull(Params, "source", R.source, P);
}
llvm::json::Value toJSON(const PublishDiagnosticsParams &PDP) {
llvm::json::Object Result{
{"uri", PDP.uri},
{"diagnostics", PDP.diagnostics},
};
if (PDP.version)
Result["version"] = PDP.version;
return std::move(Result);
}
bool fromJSON(const llvm::json::Value &Params, CodeActionContext &R,
llvm::json::Path P) {
llvm::json::ObjectMapper O(Params, P);
if (!O || !O.map("diagnostics", R.diagnostics))
return false;
O.map("only", R.only);
return true;
}
llvm::raw_ostream &operator<<(llvm::raw_ostream &OS, const Diagnostic &D) {
OS << D.range << " [";
switch (D.severity) {
case 1:
OS << "error";
break;
case 2:
OS << "warning";
break;
case 3:
OS << "note";
break;
case 4:
OS << "remark";
break;
default:
OS << "diagnostic";
break;
}
return OS << '(' << D.severity << "): " << D.message << "]";
}
bool fromJSON(const llvm::json::Value &Params, CodeActionParams &R,
llvm::json::Path P) {
llvm::json::ObjectMapper O(Params, P);
return O && O.map("textDocument", R.textDocument) &&
O.map("range", R.range) && O.map("context", R.context);
}
bool fromJSON(const llvm::json::Value &Params, WorkspaceEdit &R,
llvm::json::Path P) {
llvm::json::ObjectMapper O(Params, P);
return O && O.map("changes", R.changes);
}
bool fromJSON(const llvm::json::Value &Params, ExecuteCommandParams &R,
llvm::json::Path P) {
llvm::json::ObjectMapper O(Params, P);
if (!O || !O.map("command", R.command))
return false;
const auto *Args = Params.getAsObject()->get("arguments");
if (!Args)
return true; // Missing args is ok, argument is null.
const auto *ArgsArray = Args->getAsArray();
if (!ArgsArray) {
P.field("arguments").report("expected array");
return false;
}
if (ArgsArray->size() > 1) {
P.field("arguments").report("Command should have 0 or 1 argument");
return false;
}
if (ArgsArray->size() == 1) {
R.argument = ArgsArray->front();
}
return true;
}
llvm::json::Value toJSON(const SymbolInformation &P) {
llvm::json::Object O{
{"name", P.name},
{"kind", static_cast<int>(P.kind)},
{"location", P.location},
{"containerName", P.containerName},
};
if (P.score)
O["score"] = *P.score;
return std::move(O);
}
llvm::raw_ostream &operator<<(llvm::raw_ostream &O,
const SymbolInformation &SI) {
O << SI.containerName << "::" << SI.name << " - " << toJSON(SI);
return O;
}
bool operator==(const SymbolDetails &LHS, const SymbolDetails &RHS) {
return LHS.name == RHS.name && LHS.containerName == RHS.containerName &&
LHS.USR == RHS.USR && LHS.ID == RHS.ID;
}
llvm::json::Value toJSON(const SymbolDetails &P) {
llvm::json::Object Result{{"name", llvm::json::Value(nullptr)},
{"containerName", llvm::json::Value(nullptr)},
{"usr", llvm::json::Value(nullptr)},
{"id", llvm::json::Value(nullptr)}};
if (!P.name.empty())
Result["name"] = P.name;
if (!P.containerName.empty())
Result["containerName"] = P.containerName;
if (!P.USR.empty())
Result["usr"] = P.USR;
if (P.ID)
Result["id"] = P.ID.str();
// FIXME: workaround for older gcc/clang
return std::move(Result);
}
llvm::raw_ostream &operator<<(llvm::raw_ostream &O, const SymbolDetails &S) {
if (!S.containerName.empty()) {
O << S.containerName;
llvm::StringRef ContNameRef;
if (!ContNameRef.endswith("::")) {
O << " ";
}
}
O << S.name << " - " << toJSON(S);
return O;
}
bool fromJSON(const llvm::json::Value &Params, WorkspaceSymbolParams &R,
llvm::json::Path P) {
llvm::json::ObjectMapper O(Params, P);
return O && O.map("query", R.query) &&
mapOptOrNull(Params, "limit", R.limit, P);
}
llvm::json::Value toJSON(const Command &C) {
auto Cmd = llvm::json::Object{{"title", C.title}, {"command", C.command}};
if (!C.argument.getAsNull())
Cmd["arguments"] = llvm::json::Array{C.argument};
return std::move(Cmd);
}
const llvm::StringLiteral CodeAction::QUICKFIX_KIND = "quickfix";
const llvm::StringLiteral CodeAction::REFACTOR_KIND = "refactor";
const llvm::StringLiteral CodeAction::INFO_KIND = "info";
llvm::json::Value toJSON(const CodeAction &CA) {
auto CodeAction = llvm::json::Object{{"title", CA.title}};
if (CA.kind)
CodeAction["kind"] = *CA.kind;
if (CA.diagnostics)
CodeAction["diagnostics"] = llvm::json::Array(*CA.diagnostics);
if (CA.isPreferred)
CodeAction["isPreferred"] = true;
if (CA.edit)
CodeAction["edit"] = *CA.edit;
if (CA.command)
CodeAction["command"] = *CA.command;
return std::move(CodeAction);
}
llvm::raw_ostream &operator<<(llvm::raw_ostream &O, const DocumentSymbol &S) {
return O << S.name << " - " << toJSON(S);
}
llvm::json::Value toJSON(const DocumentSymbol &S) {
llvm::json::Object Result{{"name", S.name},
{"kind", static_cast<int>(S.kind)},
{"range", S.range},
{"selectionRange", S.selectionRange}};
if (!S.detail.empty())
Result["detail"] = S.detail;
if (!S.children.empty())
Result["children"] = S.children;
if (S.deprecated)
Result["deprecated"] = true;
// FIXME: workaround for older gcc/clang
return std::move(Result);
}
llvm::json::Value toJSON(const WorkspaceEdit &WE) {
llvm::json::Object FileChanges;
for (auto &Change : WE.changes)
FileChanges[Change.first] = llvm::json::Array(Change.second);
return llvm::json::Object{{"changes", std::move(FileChanges)}};
}
bool fromJSON(const llvm::json::Value &Params, TweakArgs &A,
llvm::json::Path P) {
llvm::json::ObjectMapper O(Params, P);
return O && O.map("file", A.file) && O.map("selection", A.selection) &&
O.map("tweakID", A.tweakID);
}
llvm::json::Value toJSON(const TweakArgs &A) {
return llvm::json::Object{
{"tweakID", A.tweakID}, {"selection", A.selection}, {"file", A.file}};
}
llvm::json::Value toJSON(const ApplyWorkspaceEditParams &Params) {
return llvm::json::Object{{"edit", Params.edit}};
}
bool fromJSON(const llvm::json::Value &Response, ApplyWorkspaceEditResponse &R,
llvm::json::Path P) {
llvm::json::ObjectMapper O(Response, P);
return O && O.map("applied", R.applied) &&
O.map("failureReason", R.failureReason);
}
bool fromJSON(const llvm::json::Value &Params, TextDocumentPositionParams &R,
llvm::json::Path P) {
llvm::json::ObjectMapper O(Params, P);
return O && O.map("textDocument", R.textDocument) &&
O.map("position", R.position);
}
bool fromJSON(const llvm::json::Value &Params, CompletionContext &R,
llvm::json::Path P) {
llvm::json::ObjectMapper O(Params, P);
int TriggerKind;
if (!O || !O.map("triggerKind", TriggerKind) ||
!mapOptOrNull(Params, "triggerCharacter", R.triggerCharacter, P))
return false;
R.triggerKind = static_cast<CompletionTriggerKind>(TriggerKind);
return true;
}
bool fromJSON(const llvm::json::Value &Params, CompletionParams &R,
llvm::json::Path P) {
if (!fromJSON(Params, static_cast<TextDocumentPositionParams &>(R), P) ||
!mapOptOrNull(Params, "limit", R.limit, P))
return false;
if (auto *Context = Params.getAsObject()->get("context"))
return fromJSON(*Context, R.context, P.field("context"));
return true;
}
static llvm::StringRef toTextKind(MarkupKind Kind) {
switch (Kind) {
case MarkupKind::PlainText:
return "plaintext";
case MarkupKind::Markdown:
return "markdown";
}
llvm_unreachable("Invalid MarkupKind");
}
bool fromJSON(const llvm::json::Value &V, MarkupKind &K, llvm::json::Path P) {
auto Str = V.getAsString();
if (!Str) {
P.report("expected string");
return false;
}
if (*Str == "plaintext")
K = MarkupKind::PlainText;
else if (*Str == "markdown")
K = MarkupKind::Markdown;
else {
P.report("unknown markup kind");
return false;
}
return true;
}
llvm::raw_ostream &operator<<(llvm::raw_ostream &OS, MarkupKind K) {
return OS << toTextKind(K);
}
llvm::json::Value toJSON(const MarkupContent &MC) {
if (MC.value.empty())
return nullptr;
return llvm::json::Object{
{"kind", toTextKind(MC.kind)},
{"value", MC.value},
};
}
llvm::json::Value toJSON(const Hover &H) {
llvm::json::Object Result{{"contents", toJSON(H.contents)}};
if (H.range.hasValue())
Result["range"] = toJSON(*H.range);
return std::move(Result);
}
bool fromJSON(const llvm::json::Value &E, CompletionItemKind &Out,
llvm::json::Path P) {
if (auto T = E.getAsInteger()) {
if (*T < static_cast<int>(CompletionItemKind::Text) ||
*T > static_cast<int>(CompletionItemKind::TypeParameter))
return false;
Out = static_cast<CompletionItemKind>(*T);
return true;
}
return false;
}
CompletionItemKind
adjustKindToCapability(CompletionItemKind Kind,
CompletionItemKindBitset &SupportedCompletionItemKinds) {
auto KindVal = static_cast<size_t>(Kind);
if (KindVal >= CompletionItemKindMin &&
KindVal <= SupportedCompletionItemKinds.size() &&
SupportedCompletionItemKinds[KindVal])
return Kind;
switch (Kind) {
// Provide some fall backs for common kinds that are close enough.
case CompletionItemKind::Folder:
return CompletionItemKind::File;
case CompletionItemKind::EnumMember:
return CompletionItemKind::Enum;
case CompletionItemKind::Struct:
return CompletionItemKind::Class;
default:
return CompletionItemKind::Text;
}
}
bool fromJSON(const llvm::json::Value &E, CompletionItemKindBitset &Out,
llvm::json::Path P) {
if (auto *A = E.getAsArray()) {
for (size_t I = 0; I < A->size(); ++I) {
CompletionItemKind KindOut;
if (fromJSON((*A)[I], KindOut, P.index(I)))
Out.set(size_t(KindOut));
}
return true;
}
return false;
}
llvm::json::Value toJSON(const CompletionItem &CI) {
assert(!CI.label.empty() && "completion item label is required");
llvm::json::Object Result{{"label", CI.label}};
if (CI.kind != CompletionItemKind::Missing)
Result["kind"] = static_cast<int>(CI.kind);
if (!CI.detail.empty())
Result["detail"] = CI.detail;
if (CI.documentation)
Result["documentation"] = CI.documentation;
if (!CI.sortText.empty())
Result["sortText"] = CI.sortText;
if (!CI.filterText.empty())
Result["filterText"] = CI.filterText;
if (!CI.insertText.empty())
Result["insertText"] = CI.insertText;
if (CI.insertTextFormat != InsertTextFormat::Missing)
Result["insertTextFormat"] = static_cast<int>(CI.insertTextFormat);
if (CI.textEdit)
Result["textEdit"] = *CI.textEdit;
if (!CI.additionalTextEdits.empty())
Result["additionalTextEdits"] = llvm::json::Array(CI.additionalTextEdits);
if (CI.deprecated)
Result["deprecated"] = CI.deprecated;
Result["score"] = CI.score;
return std::move(Result);