readonly renameInfo: RenameInfo;

readonly inputs: {

readonly fileName: string;

readonly position: number;

readonly findInStrings: boolean;

readonly findInComments: boolean;

};

readonly locations: RenameLocation[];

// Read the content length

const contentLengthPrefix = "Content-Length: ";

const lines = message.split(/\r?\n/);

Debug.assert(lines.length >= 2, "Malformed response: Expected 3 lines in the response.");

const contentLengthText = lines[0];

Debug.assert(contentLengthText.indexOf(contentLengthPrefix) === 0, "Malformed response: Response text did not contain content-length header.");

const contentLength = parseInt(contentLengthText.substring(contentLengthPrefix.length));

// Read the body

const responseBody = lines[2];

// Verify content length

Debug.assert(responseBody.length + 1 === contentLength, "Malformed response: Content length did not match the response's body length.");

return responseBody;

private sequence = 0;

private lineMaps = new Map<string, number[]>();

private messages: string[] = [];

private lastRenameEntry: RenameEntry | undefined;

constructor(private host: SessionClientHost) {

}

public onMessage(message: string): void {

this.messages.push(message);

}

private writeMessage(message: string): void {

this.host.writeMessage(message);

}

private getLineMap(fileName: string): number[] {

let lineMap = this.lineMaps.get(fileName);

if (!lineMap) {

lineMap = computeLineStarts(getSnapshotText(this.host.getScriptSnapshot(fileName)!));

this.lineMaps.set(fileName, lineMap);

}

return lineMap;

}

private lineOffsetToPosition(fileName: string, lineOffset: protocol.Location, lineMap?: number[]): number {

lineMap = lineMap || this.getLineMap(fileName);

return computePositionOfLineAndCharacter(lineMap, lineOffset.line - 1, lineOffset.offset - 1);

}

private positionToOneBasedLineOffset(fileName: string, position: number): protocol.Location {

const lineOffset = computeLineAndCharacterOfPosition(this.getLineMap(fileName), position);

return {

line: lineOffset.line + 1,

offset: lineOffset.character + 1

};

}

private convertCodeEditsToTextChange(fileName: string, codeEdit: protocol.CodeEdit): TextChange {

return { span: this.decodeSpan(codeEdit, fileName), newText: codeEdit.newText };

}

private processRequest<T extends protocol.Request>(command: string, args: T["arguments"]): T {

const request: protocol.Request = {

seq: this.sequence,

type: "request",

arguments: args,

command

};

this.sequence++;

this.writeMessage(JSON.stringify(request));

return request as T;

}

private processResponse<T extends protocol.Response>(request: protocol.Request, expectEmptyBody = false): T {

let foundResponseMessage = false;

let response!: T;

while (!foundResponseMessage) {

const lastMessage = this.messages.shift()!;

Debug.assert(!!lastMessage, "Did not receive any responses.");

const responseBody = extractMessage(lastMessage);

try {

response = JSON.parse(responseBody);

// the server may emit events before emitting the response. We

// want to ignore these events for testing purpose.

if (response.type === "response") {

foundResponseMessage = true;

}

}

catch (e) {

throw new Error("Malformed response: Failed to parse server response: " + lastMessage + ". \r\n Error details: " + e.message);

}

}

// verify the sequence numbers

Debug.assert(response.request_seq === request.seq, "Malformed response: response sequence number did not match request sequence number.");

// unmarshal errors

if (!response.success) {

throw new Error("Error " + response.message);

}

Debug.assert(expectEmptyBody || !!response.body, "Malformed response: Unexpected empty response body.");

Debug.assert(!expectEmptyBody || !response.body, "Malformed response: Unexpected non-empty response body.");

return response;

}

/*@internal*/

configure(preferences: UserPreferences) {

const args: protocol.ConfigureRequestArguments = { preferences };

const request = this.processRequest(CommandNames.Configure, args);

this.processResponse(request, /*expectEmptyBody*/ true);

}

/*@internal*/

setFormattingOptions(formatOptions: FormatCodeSettings) {

const args: protocol.ConfigureRequestArguments = { formatOptions };

const request = this.processRequest(CommandNames.Configure, args);

this.processResponse(request, /*expectEmptyBody*/ true);

}

/*@internal*/

setCompilerOptionsForInferredProjects(options: protocol.CompilerOptions) {

const args: protocol.SetCompilerOptionsForInferredProjectsArgs = { options };

const request = this.processRequest(CommandNames.CompilerOptionsForInferredProjects, args);

this.processResponse(request, /*expectEmptyBody*/ false);

}

openFile(file: string, fileContent?: string, scriptKindName?: "TS" | "JS" | "TSX" | "JSX"): void {

const args: protocol.OpenRequestArgs = { file, fileContent, scriptKindName };

this.processRequest(CommandNames.Open, args);

}

closeFile(file: string): void {

const args: protocol.FileRequestArgs = { file };

this.processRequest(CommandNames.Close, args);

}

createChangeFileRequestArgs(fileName: string, start: number, end: number, insertString: string): protocol.ChangeRequestArgs {

return { ...this.createFileLocationRequestArgsWithEndLineAndOffset(fileName, start, end), insertString };

}

changeFile(fileName: string, args: protocol.ChangeRequestArgs): void {

// clear the line map after an edit

this.lineMaps.set(fileName, undefined!); // TODO: GH#18217

this.processRequest(CommandNames.Change, args);

}

toLineColumnOffset(fileName: string, position: number) {

const { line, offset } = this.positionToOneBasedLineOffset(fileName, position);

return { line, character: offset };

}

getQuickInfoAtPosition(fileName: string, position: number): QuickInfo {

const args = this.createFileLocationRequestArgs(fileName, position);

const request = this.processRequest<protocol.QuickInfoRequest>(CommandNames.Quickinfo, args);

const response = this.processResponse<protocol.QuickInfoResponse>(request);

const body = response.body!; // TODO: GH#18217

return {

kind: body.kind,

kindModifiers: body.kindModifiers,

textSpan: this.decodeSpan(body, fileName),

displayParts: [{ kind: "text", text: body.displayString }],

documentation: typeof body.documentation === "string" ? [{ kind: "text", text: body.documentation }] : body.documentation,

tags: this.decodeLinkDisplayParts(body.tags)

};

}

getProjectInfo(file: string, needFileNameList: boolean): protocol.ProjectInfo {

const args: protocol.ProjectInfoRequestArgs = { file, needFileNameList };

const request = this.processRequest<protocol.ProjectInfoRequest>(CommandNames.ProjectInfo, args);

const response = this.processResponse<protocol.ProjectInfoResponse>(request);

return {

configFileName: response.body!.configFileName, // TODO: GH#18217

fileNames: response.body!.fileNames

};

}

getCompletionsAtPosition(fileName: string, position: number, _preferences: UserPreferences | undefined): CompletionInfo {

// Not passing along 'preferences' because server should already have those from the 'configure' command

const args: protocol.CompletionsRequestArgs = this.createFileLocationRequestArgs(fileName, position);

const request = this.processRequest<protocol.CompletionsRequest>(CommandNames.CompletionInfo, args);

const response = this.processResponse<protocol.CompletionInfoResponse>(request);

return {

isGlobalCompletion: response.body!.isGlobalCompletion,

isMemberCompletion: response.body!.isMemberCompletion,

isNewIdentifierLocation: response.body!.isNewIdentifierLocation,

entries: response.body!.entries.map<CompletionEntry>(entry => { // TODO: GH#18217

if (entry.replacementSpan !== undefined) {

const res: CompletionEntry = { ...entry, data: entry.data as any, replacementSpan: this.decodeSpan(entry.replacementSpan, fileName) };

return res;

}

return entry as { name: string, kind: ScriptElementKind, kindModifiers: string, sortText: string }; // TODO: GH#18217

})

};

}

getCompletionEntryDetails(fileName: string, position: number, entryName: string, _options: FormatCodeOptions | FormatCodeSettings | undefined, source: string | undefined, _preferences: UserPreferences | undefined, data: unknown): CompletionEntryDetails {

const args: protocol.CompletionDetailsRequestArgs = { ...this.createFileLocationRequestArgs(fileName, position), entryNames: [{ name: entryName, source, data }] };

const request = this.processRequest<protocol.CompletionDetailsRequest>(CommandNames.CompletionDetailsFull, args);

const response = this.processResponse<protocol.Response>(request);

Debug.assert(response.body.length === 1, "Unexpected length of completion details response body.");

return response.body[0];

}

getCompletionEntrySymbol(_fileName: string, _position: number, _entryName: string): Symbol {

return notImplemented();

}

getNavigateToItems(searchValue: string): NavigateToItem[] {

const args: protocol.NavtoRequestArgs = {

searchValue,

file: this.host.getScriptFileNames()[0]

};

const request = this.processRequest<protocol.NavtoRequest>(CommandNames.Navto, args);

const response = this.processResponse<protocol.NavtoResponse>(request);

return response.body!.map(entry => ({ // TODO: GH#18217

name: entry.name,

containerName: entry.containerName || "",

containerKind: entry.containerKind || ScriptElementKind.unknown,

kind: entry.kind,

kindModifiers: entry.kindModifiers || "",

matchKind: entry.matchKind as keyof typeof PatternMatchKind,

isCaseSensitive: entry.isCaseSensitive,

fileName: entry.file,

textSpan: this.decodeSpan(entry),

}));

}

getFormattingEditsForRange(file: string, start: number, end: number, _options: FormatCodeOptions): TextChange[] {

const args: protocol.FormatRequestArgs = this.createFileLocationRequestArgsWithEndLineAndOffset(file, start, end);

// TODO: handle FormatCodeOptions

const request = this.processRequest<protocol.FormatRequest>(CommandNames.Format, args);

const response = this.processResponse<protocol.FormatResponse>(request);

return response.body!.map(entry => this.convertCodeEditsToTextChange(file, entry)); // TODO: GH#18217

}

getFormattingEditsForDocument(fileName: string, options: FormatCodeOptions): TextChange[] {

return this.getFormattingEditsForRange(fileName, 0, this.host.getScriptSnapshot(fileName)!.getLength(), options);

}

getFormattingEditsAfterKeystroke(fileName: string, position: number, key: string, _options: FormatCodeOptions): TextChange[] {

const args: protocol.FormatOnKeyRequestArgs = { ...this.createFileLocationRequestArgs(fileName, position), key };

// TODO: handle FormatCodeOptions

const request = this.processRequest<protocol.FormatOnKeyRequest>(CommandNames.Formatonkey, args);

const response = this.processResponse<protocol.FormatResponse>(request);

return response.body!.map(entry => this.convertCodeEditsToTextChange(fileName, entry)); // TODO: GH#18217

}

getDefinitionAtPosition(fileName: string, position: number): DefinitionInfo[] {

const args: protocol.FileLocationRequestArgs = this.createFileLocationRequestArgs(fileName, position);

const request = this.processRequest<protocol.DefinitionRequest>(CommandNames.Definition, args);

const response = this.processResponse<protocol.DefinitionResponse>(request);

return response.body!.map(entry => ({ // TODO: GH#18217

containerKind: ScriptElementKind.unknown,

containerName: "",

fileName: entry.file,

textSpan: this.decodeSpan(entry),

kind: ScriptElementKind.unknown,

name: ""

}));

}

getDefinitionAndBoundSpan(fileName: string, position: number): DefinitionInfoAndBoundSpan {

const args: protocol.FileLocationRequestArgs = this.createFileLocationRequestArgs(fileName, position);

const request = this.processRequest<protocol.DefinitionRequest>(CommandNames.DefinitionAndBoundSpan, args);

const response = this.processResponse<protocol.DefinitionInfoAndBoundSpanResponse>(request);

const body = Debug.checkDefined(response.body); // TODO: GH#18217

return {

definitions: body.definitions.map(entry => ({

containerKind: ScriptElementKind.unknown,

containerName: "",

fileName: entry.file,

textSpan: this.decodeSpan(entry),

kind: ScriptElementKind.unknown,

name: "",

unverified: entry.unverified,

})),

textSpan: this.decodeSpan(body.textSpan, request.arguments.file)

};

}

getTypeDefinitionAtPosition(fileName: string, position: number): DefinitionInfo[] {

const args: protocol.FileLocationRequestArgs = this.createFileLocationRequestArgs(fileName, position);

const request = this.processRequest<protocol.TypeDefinitionRequest>(CommandNames.TypeDefinition, args);

const response = this.processResponse<protocol.TypeDefinitionResponse>(request);

return response.body!.map(entry => ({ // TODO: GH#18217

containerKind: ScriptElementKind.unknown,

containerName: "",

fileName: entry.file,

textSpan: this.decodeSpan(entry),

kind: ScriptElementKind.unknown,

name: ""

}));

}

getImplementationAtPosition(fileName: string, position: number): ImplementationLocation[] {

const args = this.createFileLocationRequestArgs(fileName, position);

const request = this.processRequest<protocol.ImplementationRequest>(CommandNames.Implementation, args);

const response = this.processResponse<protocol.ImplementationResponse>(request);

return response.body!.map(entry => ({ // TODO: GH#18217

fileName: entry.file,

textSpan: this.decodeSpan(entry),

kind: ScriptElementKind.unknown,

displayParts: []

}));

}

findReferences(fileName: string, position: number): ReferencedSymbol[] {

const args = this.createFileLocationRequestArgs(fileName, position);

const request = this.processRequest<protocol.ReferencesRequest>(CommandNames.ReferencesFull, args);

const response = this.processResponse(request);

return response.body;

}

getReferencesAtPosition(fileName: string, position: number): ReferenceEntry[] {

const args = this.createFileLocationRequestArgs(fileName, position);

const request = this.processRequest<protocol.ReferencesRequest>(CommandNames.References, args);

const response = this.processResponse<protocol.ReferencesResponse>(request);

return response.body!.refs.map(entry => ({ // TODO: GH#18217

fileName: entry.file,

textSpan: this.decodeSpan(entry),

isWriteAccess: entry.isWriteAccess,

isDefinition: entry.isDefinition,

}));

}

getFileReferences(fileName: string): ReferenceEntry[] {

const request = this.processRequest<protocol.FileReferencesRequest>(CommandNames.FileReferences, { file: fileName });

const response = this.processResponse<protocol.FileReferencesResponse>(request);

return response.body!.refs.map(entry => ({ // TODO: GH#18217

fileName: entry.file,

textSpan: this.decodeSpan(entry),

isWriteAccess: entry.isWriteAccess,

isDefinition: entry.isDefinition,

}));

}

getEmitOutput(file: string): EmitOutput {

const request = this.processRequest<protocol.EmitOutputRequest>(protocol.CommandTypes.EmitOutput, { file });

const response = this.processResponse<protocol.EmitOutputResponse>(request);

return response.body as EmitOutput;

}

getSyntacticDiagnostics(file: string): DiagnosticWithLocation[] {

return this.getDiagnostics(file, CommandNames.SyntacticDiagnosticsSync);

}

getSemanticDiagnostics(file: string): Diagnostic[] {

return this.getDiagnostics(file, CommandNames.SemanticDiagnosticsSync);

}

getSuggestionDiagnostics(file: string): DiagnosticWithLocation[] {

return this.getDiagnostics(file, CommandNames.SuggestionDiagnosticsSync);

}

private getDiagnostics(file: string, command: CommandNames): DiagnosticWithLocation[] {

const request = this.processRequest<protocol.SyntacticDiagnosticsSyncRequest | protocol.SemanticDiagnosticsSyncRequest | protocol.SuggestionDiagnosticsSyncRequest>(command, { file, includeLinePosition: true });

const response = this.processResponse<protocol.SyntacticDiagnosticsSyncResponse | protocol.SemanticDiagnosticsSyncResponse | protocol.SuggestionDiagnosticsSyncResponse>(request);

const sourceText = getSnapshotText(this.host.getScriptSnapshot(file)!);

const fakeSourceFile = { fileName: file, text: sourceText } as SourceFile; // Warning! This is a huge lie!

return (response.body as protocol.DiagnosticWithLinePosition[]).map((entry): DiagnosticWithLocation => {

const category = firstDefined(Object.keys(DiagnosticCategory), id =>

isString(id) && entry.category === id.toLowerCase() ? (DiagnosticCategory as any)[id] : undefined);

return {

file: fakeSourceFile,

start: entry.start,

length: entry.length,

messageText: entry.message,

category: Debug.checkDefined(category, "convertDiagnostic: category should not be undefined"),

code: entry.code,

reportsUnnecessary: entry.reportsUnnecessary,

reportsDeprecated: entry.reportsDeprecated,

};

});

}

getCompilerOptionsDiagnostics(): Diagnostic[] {

return notImplemented();

}

getRenameInfo(fileName: string, position: number, _options?: RenameInfoOptions, findInStrings?: boolean, findInComments?: boolean): RenameInfo {

// Not passing along 'options' because server should already have those from the 'configure' command

const args: protocol.RenameRequestArgs = { ...this.createFileLocationRequestArgs(fileName, position), findInStrings, findInComments };

const request = this.processRequest<protocol.RenameRequest>(CommandNames.Rename, args);

const response = this.processResponse<protocol.RenameResponse>(request);

const body = response.body!; // TODO: GH#18217

const locations: RenameLocation[] = [];

for (const entry of body.locs) {

const fileName = entry.file;

for (const { start, end, contextStart, contextEnd, ...prefixSuffixText } of entry.locs) {

locations.push({

textSpan: this.decodeSpan({ start, end }, fileName),

fileName,

...(contextStart !== undefined ?

{ contextSpan: this.decodeSpan({ start: contextStart, end: contextEnd! }, fileName) } :

undefined),

...prefixSuffixText

});

}

}

const renameInfo = body.info.canRename

? identity<RenameInfoSuccess>({

canRename: body.info.canRename,

fileToRename: body.info.fileToRename,

displayName: body.info.displayName,

fullDisplayName: body.info.fullDisplayName,

kind: body.info.kind,

kindModifiers: body.info.kindModifiers,

triggerSpan: createTextSpanFromBounds(position, position),

})

: identity<RenameInfoFailure>({ canRename: false, localizedErrorMessage: body.info.localizedErrorMessage });

this.lastRenameEntry = {

renameInfo,

inputs: {

fileName,

position,

findInStrings: !!findInStrings,

findInComments: !!findInComments,

},

locations,

};

return renameInfo;

}

getSmartSelectionRange() {

return notImplemented();

}

findRenameLocations(fileName: string, position: number, findInStrings: boolean, findInComments: boolean): RenameLocation[] {

if (!this.lastRenameEntry ||

this.lastRenameEntry.inputs.fileName !== fileName ||

this.lastRenameEntry.inputs.position !== position ||

this.lastRenameEntry.inputs.findInStrings !== findInStrings ||

this.lastRenameEntry.inputs.findInComments !== findInComments) {

this.getRenameInfo(fileName, position, { allowRenameOfImportPath: true }, findInStrings, findInComments);

}

return this.lastRenameEntry!.locations;

}

private decodeNavigationBarItems(items: protocol.NavigationBarItem[] | undefined, fileName: string, lineMap: number[]): NavigationBarItem[] {

if (!items) {

return [];

}

return items.map(item => ({

text: item.text,

kind: item.kind,

kindModifiers: item.kindModifiers || "",

spans: item.spans.map(span => this.decodeSpan(span, fileName, lineMap)),

childItems: this.decodeNavigationBarItems(item.childItems, fileName, lineMap),

indent: item.indent,

bolded: false,

grayed: false

}));

}

getNavigationBarItems(file: string): NavigationBarItem[] {

const request = this.processRequest<protocol.NavBarRequest>(CommandNames.NavBar, { file });

const response = this.processResponse<protocol.NavBarResponse>(request);

const lineMap = this.getLineMap(file);

return this.decodeNavigationBarItems(response.body, file, lineMap);

}

private decodeNavigationTree(tree: protocol.NavigationTree, fileName: string, lineMap: number[]): NavigationTree {

return {

text: tree.text,

kind: tree.kind,

kindModifiers: tree.kindModifiers,

spans: tree.spans.map(span => this.decodeSpan(span, fileName, lineMap)),

nameSpan: tree.nameSpan && this.decodeSpan(tree.nameSpan, fileName, lineMap),

childItems: map(tree.childItems, item => this.decodeNavigationTree(item, fileName, lineMap))

};

}

getNavigationTree(file: string): NavigationTree {

const request = this.processRequest<protocol.NavTreeRequest>(CommandNames.NavTree, { file });

const response = this.processResponse<protocol.NavTreeResponse>(request);

const lineMap = this.getLineMap(file);

return this.decodeNavigationTree(response.body!, file, lineMap); // TODO: GH#18217

}

private decodeSpan(span: protocol.TextSpan & { file: string }): TextSpan;

private decodeSpan(span: protocol.TextSpan, fileName: string, lineMap?: number[]): TextSpan;

private decodeSpan(span: protocol.TextSpan & { file: string }, fileName?: string, lineMap?: number[]): TextSpan {

if (span.start.line === 1 && span.start.offset === 1 && span.end.line === 1 && span.end.offset === 1) {

return { start: 0, length: 0 };

}

fileName = fileName || span.file;

lineMap = lineMap || this.getLineMap(fileName);

return createTextSpanFromBounds(

this.lineOffsetToPosition(fileName, span.start, lineMap),

this.lineOffsetToPosition(fileName, span.end, lineMap));

}

private decodeLinkDisplayParts(tags: (protocol.JSDocTagInfo | JSDocTagInfo)[]): JSDocTagInfo[] {

return tags.map(tag => typeof tag.text === "string" ? {

...tag,

text: [textPart(tag.text)]

} : (tag as JSDocTagInfo));

}

getNameOrDottedNameSpan(_fileName: string, _startPos: number, _endPos: number): TextSpan {

return notImplemented();

}

getBreakpointStatementAtPosition(_fileName: string, _position: number): TextSpan {

return notImplemented();

}

getSignatureHelpItems(fileName: string, position: number): SignatureHelpItems | undefined {

const args: protocol.SignatureHelpRequestArgs = this.createFileLocationRequestArgs(fileName, position);

const request = this.processRequest<protocol.SignatureHelpRequest>(CommandNames.SignatureHelp, args);

const response = this.processResponse<protocol.SignatureHelpResponse>(request);

if (!response.body) {

return undefined;

}

const { items: encodedItems, applicableSpan: encodedApplicableSpan, selectedItemIndex, argumentIndex, argumentCount } = response.body;

const applicableSpan = encodedApplicableSpan as unknown as TextSpan;

const items = (encodedItems as (SignatureHelpItem | protocol.SignatureHelpItem)[]).map(item => ({ ...item, tags: this.decodeLinkDisplayParts(item.tags) }));

return { items, applicableSpan, selectedItemIndex, argumentIndex, argumentCount };

}

getOccurrencesAtPosition(fileName: string, position: number): ReferenceEntry[] {

const args = this.createFileLocationRequestArgs(fileName, position);

const request = this.processRequest<protocol.OccurrencesRequest>(CommandNames.Occurrences, args);

const response = this.processResponse<protocol.OccurrencesResponse>(request);

return response.body!.map(entry => ({ // TODO: GH#18217

fileName: entry.file,

textSpan: this.decodeSpan(entry),

isWriteAccess: entry.isWriteAccess,

isDefinition: false

}));

}

getDocumentHighlights(fileName: string, position: number, filesToSearch: string[]): DocumentHighlights[] {

const args: protocol.DocumentHighlightsRequestArgs = { ...this.createFileLocationRequestArgs(fileName, position), filesToSearch };

const request = this.processRequest<protocol.DocumentHighlightsRequest>(CommandNames.DocumentHighlights, args);

const response = this.processResponse<protocol.DocumentHighlightsResponse>(request);

return response.body!.map(item => ({ // TODO: GH#18217

fileName: item.file,

highlightSpans: item.highlightSpans.map(span => ({

textSpan: this.decodeSpan(span, item.file),

kind: span.kind

})),

}));

}

getOutliningSpans(file: string): OutliningSpan[] {

const request = this.processRequest<protocol.OutliningSpansRequest>(CommandNames.GetOutliningSpans, { file });

const response = this.processResponse<protocol.OutliningSpansResponse>(request);

return response.body!.map<OutliningSpan>(item => ({

textSpan: this.decodeSpan(item.textSpan, file),

hintSpan: this.decodeSpan(item.hintSpan, file),

bannerText: item.bannerText,

autoCollapse: item.autoCollapse,

kind: item.kind

}));

}

getTodoComments(_fileName: string, _descriptors: TodoCommentDescriptor[]): TodoComment[] {

return notImplemented();

}

getDocCommentTemplateAtPosition(_fileName: string, _position: number, _options?: DocCommentTemplateOptions): TextInsertion {

return notImplemented();

}

isValidBraceCompletionAtPosition(_fileName: string, _position: number, _openingBrace: number): boolean {

return notImplemented();

}

getJsxClosingTagAtPosition(_fileName: string, _position: number): never {

return notImplemented();

}

getSpanOfEnclosingComment(_fileName: string, _position: number, _onlyMultiLine: boolean): TextSpan {

return notImplemented();

}

getCodeFixesAtPosition(file: string, start: number, end: number, errorCodes: readonly number[]): readonly CodeFixAction[] {

const args: protocol.CodeFixRequestArgs = { ...this.createFileRangeRequestArgs(file, start, end), errorCodes };

const request = this.processRequest<protocol.CodeFixRequest>(CommandNames.GetCodeFixes, args);

const response = this.processResponse<protocol.CodeFixResponse>(request);

return response.body!.map<CodeFixAction>(({ fixName, description, changes, commands, fixId, fixAllDescription }) => // TODO: GH#18217

({ fixName, description, changes: this.convertChanges(changes, file), commands: commands as CodeActionCommand[], fixId, fixAllDescription }));

}

getCombinedCodeFix = notImplemented;

applyCodeActionCommand = notImplemented;

provideInlayHints(file: string, span: TextSpan): InlayHint[] {

const { start, length } = span;

const args: protocol.InlayHintsRequestArgs = { file, start, length };

const request = this.processRequest<protocol.InlayHintsRequest>(CommandNames.ProvideInlayHints, args);