xref: /third_party/typescript/src/server/protocol.ts

import * as ts from "./_namespaces/ts";
import {
    CompilerOptionsValue, EndOfLineState, FileExtensionInfo, HighlightSpanKind, JsDocTagInfo, MapLike,
    OutliningSpanKind, OutputFile, PluginImport, ProjectReference, RenameLocation, ScriptElementKind, ScriptKind,
    TextChange, TextInsertion, TodoComment, TodoCommentDescriptor, TypeAcquisition,
} from "./_namespaces/ts";

/* eslint-disable @typescript-eslint/no-unnecessary-qualifier */

/**
 * Declaration module describing the TypeScript Server protocol
 */

// NOTE: If updating this, be sure to also update `allCommandNames` in `testRunner/unittests/tsserver/session.ts`.
export const enum CommandTypes {
    JsxClosingTag = "jsxClosingTag",
    Brace = "brace",
    /** @internal */
    BraceFull = "brace-full",
    BraceCompletion = "braceCompletion",
    GetSpanOfEnclosingComment = "getSpanOfEnclosingComment",
    Change = "change",
    Close = "close",
    /** @deprecated Prefer CompletionInfo -- see comment on CompletionsResponse */
    Completions = "completions",
    CompletionInfo = "completionInfo",
    /** @internal */
    CompletionsFull = "completions-full",
    CompletionDetails = "completionEntryDetails",
    /** @internal */
    CompletionDetailsFull = "completionEntryDetails-full",
    CompileOnSaveAffectedFileList = "compileOnSaveAffectedFileList",
    CompileOnSaveEmitFile = "compileOnSaveEmitFile",
    Configure = "configure",
    Definition = "definition",
    /** @internal */
    DefinitionFull = "definition-full",
    DefinitionAndBoundSpan = "definitionAndBoundSpan",
    /** @internal */
    DefinitionAndBoundSpanFull = "definitionAndBoundSpan-full",
    Implementation = "implementation",
    /** @internal */
    ImplementationFull = "implementation-full",
    /** @internal */
    EmitOutput = "emit-output",
    Exit = "exit",
    FileReferences = "fileReferences",
    /** @internal */
    FileReferencesFull = "fileReferences-full",
    Format = "format",
    Formatonkey = "formatonkey",
    /** @internal */
    FormatFull = "format-full",
    /** @internal */
    FormatonkeyFull = "formatonkey-full",
    /** @internal */
    FormatRangeFull = "formatRange-full",
    Geterr = "geterr",
    GeterrForProject = "geterrForProject",
    SemanticDiagnosticsSync = "semanticDiagnosticsSync",
    SyntacticDiagnosticsSync = "syntacticDiagnosticsSync",
    SuggestionDiagnosticsSync = "suggestionDiagnosticsSync",
    NavBar = "navbar",
    /** @internal */
    NavBarFull = "navbar-full",
    Navto = "navto",
    /** @internal */
    NavtoFull = "navto-full",
    NavTree = "navtree",
    NavTreeFull = "navtree-full",
    /** @deprecated */
    Occurrences = "occurrences",
    DocumentHighlights = "documentHighlights",
    /** @internal */
    DocumentHighlightsFull = "documentHighlights-full",
    Open = "open",
    Quickinfo = "quickinfo",
    /** @internal */
    QuickinfoFull = "quickinfo-full",
    References = "references",
    /** @internal */
    ReferencesFull = "references-full",
    Reload = "reload",
    Rename = "rename",
    /** @internal */
    RenameInfoFull = "rename-full",
    /** @internal */
    RenameLocationsFull = "renameLocations-full",
    Saveto = "saveto",
    SignatureHelp = "signatureHelp",
    /** @internal */
    SignatureHelpFull = "signatureHelp-full",
    FindSourceDefinition = "findSourceDefinition",
    Status = "status",
    TypeDefinition = "typeDefinition",
    ProjectInfo = "projectInfo",
    ReloadProjects = "reloadProjects",
    Unknown = "unknown",
    OpenExternalProject = "openExternalProject",
    OpenExternalProjects = "openExternalProjects",
    CloseExternalProject = "closeExternalProject",
    /** @internal */
    SynchronizeProjectList = "synchronizeProjectList",
    /** @internal */
    ApplyChangedToOpenFiles = "applyChangedToOpenFiles",
    UpdateOpen = "updateOpen",
    /** @internal */
    EncodedSyntacticClassificationsFull = "encodedSyntacticClassifications-full",
    /** @internal */
    EncodedSemanticClassificationsFull = "encodedSemanticClassifications-full",
    /** @internal */
    Cleanup = "cleanup",
    GetOutliningSpans = "getOutliningSpans",
    /** @internal */
    GetOutliningSpansFull = "outliningSpans", // Full command name is different for backward compatibility purposes
    TodoComments = "todoComments",
    Indentation = "indentation",
    DocCommentTemplate = "docCommentTemplate",
    /** @internal */
    CompilerOptionsDiagnosticsFull = "compilerOptionsDiagnostics-full",
    /** @internal */
    NameOrDottedNameSpan = "nameOrDottedNameSpan",
    /** @internal */
    BreakpointStatement = "breakpointStatement",
    CompilerOptionsForInferredProjects = "compilerOptionsForInferredProjects",
    GetCodeFixes = "getCodeFixes",
    /** @internal */
    GetCodeFixesFull = "getCodeFixes-full",
    GetCombinedCodeFix = "getCombinedCodeFix",
    /** @internal */
    GetCombinedCodeFixFull = "getCombinedCodeFix-full",
    ApplyCodeActionCommand = "applyCodeActionCommand",
    GetSupportedCodeFixes = "getSupportedCodeFixes",

    GetApplicableRefactors = "getApplicableRefactors",
    GetEditsForRefactor = "getEditsForRefactor",
    /** @internal */
    GetEditsForRefactorFull = "getEditsForRefactor-full",

    OrganizeImports = "organizeImports",
    /** @internal */
    OrganizeImportsFull = "organizeImports-full",
    GetEditsForFileRename = "getEditsForFileRename",
    /** @internal */
    GetEditsForFileRenameFull = "getEditsForFileRename-full",
    ConfigurePlugin = "configurePlugin",
    SelectionRange = "selectionRange",
    /** @internal */
    SelectionRangeFull = "selectionRange-full",
    ToggleLineComment = "toggleLineComment",
    /** @internal */
    ToggleLineCommentFull = "toggleLineComment-full",
    ToggleMultilineComment = "toggleMultilineComment",
    /** @internal */
    ToggleMultilineCommentFull = "toggleMultilineComment-full",
    CommentSelection = "commentSelection",
    /** @internal */
    CommentSelectionFull = "commentSelection-full",
    UncommentSelection = "uncommentSelection",
    /** @internal */
    UncommentSelectionFull = "uncommentSelection-full",
    PrepareCallHierarchy = "prepareCallHierarchy",
    ProvideCallHierarchyIncomingCalls = "provideCallHierarchyIncomingCalls",
    ProvideCallHierarchyOutgoingCalls = "provideCallHierarchyOutgoingCalls",
    ProvideInlayHints = "provideInlayHints"

    // NOTE: If updating this, be sure to also update `allCommandNames` in `testRunner/unittests/tsserver/session.ts`.
}

/**
 * A TypeScript Server message
 */
export interface Message {
    /**
     * Sequence number of the message
     */
    seq: number;

    /**
     * One of "request", "response", or "event"
     */
    type: "request" | "response" | "event";
}

/**
 * Client-initiated request message
 */
export interface Request extends Message {
    type: "request";

    /**
     * The command to execute
     */
    command: string;

    /**
     * Object containing arguments for the command
     */
    arguments?: any;
}

/**
 * Request to reload the project structure for all the opened files
 */
export interface ReloadProjectsRequest extends Message {
    command: CommandTypes.ReloadProjects;
}

/**
 * Server-initiated event message
 */
export interface Event extends Message {
    type: "event";

    /**
     * Name of event
     */
    event: string;

    /**
     * Event-specific information
     */
    body?: any;
}

/**
 * Response by server to client request message.
 */
export interface Response extends Message {
    type: "response";

    /**
     * Sequence number of the request message.
     */
    request_seq: number;

    /**
     * Outcome of the request.
     */
    success: boolean;

    /**
     * The command requested.
     */
    command: string;

    /**
     * If success === false, this should always be provided.
     * Otherwise, may (or may not) contain a success message.
     */
    message?: string;

    /**
     * Contains message body if success === true.
     */
    body?: any;

    /**
     * Contains extra information that plugin can include to be passed on
     */
    metadata?: unknown;

    /**
     * Exposes information about the performance of this request-response pair.
     */
    performanceData?: PerformanceData;
}

export interface PerformanceData {
    /**
     * Time spent updating the program graph, in milliseconds.
     */
    updateGraphDurationMs?: number;
    /**
     * The time spent creating or updating the auto-import program, in milliseconds.
     */
    createAutoImportProviderProgramDurationMs?: number;
}

/**
 * Arguments for FileRequest messages.
 */
export interface FileRequestArgs {
    /**
     * The file for the request (absolute pathname required).
     */
    file: string;

    /*
    * Optional name of project that contains file
    */
    projectFileName?: string;
}

export interface StatusRequest extends Request {
    command: CommandTypes.Status;
}

export interface StatusResponseBody {
    /**
     * The TypeScript version (`ts.version`).
     */
    version: string;
}

/**
 * Response to StatusRequest
 */
export interface StatusResponse extends Response {
    body: StatusResponseBody;
}

/**
 * Requests a JS Doc comment template for a given position
 */
export interface DocCommentTemplateRequest extends FileLocationRequest {
    command: CommandTypes.DocCommentTemplate;
}

/**
 * Response to DocCommentTemplateRequest
 */
export interface DocCommandTemplateResponse extends Response {
    body?: TextInsertion;
}

/**
 * A request to get TODO comments from the file
 */
export interface TodoCommentRequest extends FileRequest {
    command: CommandTypes.TodoComments;
    arguments: TodoCommentRequestArgs;
}

/**
 * Arguments for TodoCommentRequest request.
 */
export interface TodoCommentRequestArgs extends FileRequestArgs {
    /**
     * Array of target TodoCommentDescriptors that describes TODO comments to be found
     */
    descriptors: TodoCommentDescriptor[];
}

/**
 * Response for TodoCommentRequest request.
 */
export interface TodoCommentsResponse extends Response {
    body?: TodoComment[];
}

/**
 * A request to determine if the caret is inside a comment.
 */
export interface SpanOfEnclosingCommentRequest extends FileLocationRequest {
    command: CommandTypes.GetSpanOfEnclosingComment;
    arguments: SpanOfEnclosingCommentRequestArgs;
}

export interface SpanOfEnclosingCommentRequestArgs extends FileLocationRequestArgs {
    /**
     * Requires that the enclosing span be a multi-line comment, or else the request returns undefined.
     */
    onlyMultiLine: boolean;
}

/**
 * Request to obtain outlining spans in file.
 */
export interface OutliningSpansRequest extends FileRequest {
    command: CommandTypes.GetOutliningSpans;
}

export interface OutliningSpan {
    /** The span of the document to actually collapse. */
    textSpan: TextSpan;

    /** The span of the document to display when the user hovers over the collapsed span. */
    hintSpan: TextSpan;

    /** The text to display in the editor for the collapsed region. */
    bannerText: string;

    /**
     * Whether or not this region should be automatically collapsed when
     * the 'Collapse to Definitions' command is invoked.
     */
    autoCollapse: boolean;

    /**
     * Classification of the contents of the span
     */
    kind: OutliningSpanKind;
}

/**
 * Response to OutliningSpansRequest request.
 */
export interface OutliningSpansResponse extends Response {
    body?: OutliningSpan[];
}

/**
 * Request to obtain outlining spans in file.
 *
 * @internal
 */
export interface OutliningSpansRequestFull extends FileRequest {
    command: CommandTypes.GetOutliningSpansFull;
}

/**
 * Response to OutliningSpansRequest request.
 *
 * @internal
 */
export interface OutliningSpansResponseFull extends Response {
    body?: ts.OutliningSpan[];
}

/**
 * A request to get indentation for a location in file
 */
export interface IndentationRequest extends FileLocationRequest {
    command: CommandTypes.Indentation;
    arguments: IndentationRequestArgs;
}

/**
 * Response for IndentationRequest request.
 */
export interface IndentationResponse extends Response {
    body?: IndentationResult;
}

/**
 * Indentation result representing where indentation should be placed
 */
export interface IndentationResult {
    /**
     * The base position in the document that the indent should be relative to
     */
    position: number;
    /**
     * The number of columns the indent should be at relative to the position's column.
     */
    indentation: number;
}

/**
 * Arguments for IndentationRequest request.
 */
export interface IndentationRequestArgs extends FileLocationRequestArgs {
    /**
     * An optional set of settings to be used when computing indentation.
     * If argument is omitted - then it will use settings for file that were previously set via 'configure' request or global settings.
     */
    options?: EditorSettings;
}

/**
 * Arguments for ProjectInfoRequest request.
 */
export interface ProjectInfoRequestArgs extends FileRequestArgs {
    /**
     * Indicate if the file name list of the project is needed
     */
    needFileNameList: boolean;
}

/**
 * A request to get the project information of the current file.
 */
export interface ProjectInfoRequest extends Request {
    command: CommandTypes.ProjectInfo;
    arguments: ProjectInfoRequestArgs;
}

/**
 * A request to retrieve compiler options diagnostics for a project
 */
export interface CompilerOptionsDiagnosticsRequest extends Request {
    arguments: CompilerOptionsDiagnosticsRequestArgs;
}

/**
 * Arguments for CompilerOptionsDiagnosticsRequest request.
 */
export interface CompilerOptionsDiagnosticsRequestArgs {
    /**
     * Name of the project to retrieve compiler options diagnostics.
     */
    projectFileName: string;
}

/**
 * Response message body for "projectInfo" request
 */
export interface ProjectInfo {
    /**
     * For configured project, this is the normalized path of the 'tsconfig.json' file
     * For inferred project, this is undefined
     */
    configFileName: string;
    /**
     * The list of normalized file name in the project, including 'lib.d.ts'
     */
    fileNames?: string[];
    /**
     * Indicates if the project has a active language service instance
     */
    languageServiceDisabled?: boolean;
}

/**
 * Represents diagnostic info that includes location of diagnostic in two forms
 * - start position and length of the error span
 * - startLocation and endLocation - a pair of Location objects that store start/end line and offset of the error span.
 */
export interface DiagnosticWithLinePosition {
    message: string;
    start: number;
    length: number;
    startLocation: Location;
    endLocation: Location;
    category: string;
    code: number;
    /** May store more in future. For now, this will simply be `true` to indicate when a diagnostic is an unused-identifier diagnostic. */
    reportsUnnecessary?: {};
    reportsDeprecated?: {};
    relatedInformation?: DiagnosticRelatedInformation[];
}

/**
 * Response message for "projectInfo" request
 */
export interface ProjectInfoResponse extends Response {
    body?: ProjectInfo;
}

/**
 * Request whose sole parameter is a file name.
 */
export interface FileRequest extends Request {
    arguments: FileRequestArgs;
}

/**
 * Instances of this interface specify a location in a source file:
 * (file, line, character offset), where line and character offset are 1-based.
 */
export interface FileLocationRequestArgs extends FileRequestArgs {
    /**
     * The line number for the request (1-based).
     */
    line: number;

    /**
     * The character offset (on the line) for the request (1-based).
     */
    offset: number;

    /**
     * Position (can be specified instead of line/offset pair)
     *
     * @internal
     */
    position?: number;
}

export type FileLocationOrRangeRequestArgs = FileLocationRequestArgs | FileRangeRequestArgs;

/**
 * Request refactorings at a given position or selection area.
 */
export interface GetApplicableRefactorsRequest extends Request {
    command: CommandTypes.GetApplicableRefactors;
    arguments: GetApplicableRefactorsRequestArgs;
}
export type GetApplicableRefactorsRequestArgs = FileLocationOrRangeRequestArgs & {
    triggerReason?: RefactorTriggerReason;
    kind?: string;
};

export type RefactorTriggerReason = "implicit" | "invoked";

/**
 * Response is a list of available refactorings.
 * Each refactoring exposes one or more "Actions"; a user selects one action to invoke a refactoring
 */
export interface GetApplicableRefactorsResponse extends Response {
    body?: ApplicableRefactorInfo[];
}

/**
 * A set of one or more available refactoring actions, grouped under a parent refactoring.
 */
export interface ApplicableRefactorInfo {
    /**
     * The programmatic name of the refactoring
     */
    name: string;
    /**
     * A description of this refactoring category to show to the user.
     * If the refactoring gets inlined (see below), this text will not be visible.
     */
    description: string;
    /**
     * Inlineable refactorings can have their actions hoisted out to the top level
     * of a context menu. Non-inlineanable refactorings should always be shown inside
     * their parent grouping.
     *
     * If not specified, this value is assumed to be 'true'
     */
    inlineable?: boolean;

    actions: RefactorActionInfo[];
}

/**
 * Represents a single refactoring action - for example, the "Extract Method..." refactor might
 * offer several actions, each corresponding to a surround class or closure to extract into.
 */
export interface RefactorActionInfo {
    /**
     * The programmatic name of the refactoring action
     */
    name: string;

    /**
     * A description of this refactoring action to show to the user.
     * If the parent refactoring is inlined away, this will be the only text shown,
     * so this description should make sense by itself if the parent is inlineable=true
     */
    description: string;

    /**
     * A message to show to the user if the refactoring cannot be applied in
     * the current context.
     */
    notApplicableReason?: string;

    /**
     * The hierarchical dotted name of the refactor action.
     */
    kind?: string;
}

export interface GetEditsForRefactorRequest extends Request {
    command: CommandTypes.GetEditsForRefactor;
    arguments: GetEditsForRefactorRequestArgs;
}

/**
 * Request the edits that a particular refactoring action produces.
 * Callers must specify the name of the refactor and the name of the action.
 */
export type GetEditsForRefactorRequestArgs = FileLocationOrRangeRequestArgs & {
    /* The 'name' property from the refactoring that offered this action */
    refactor: string;
    /* The 'name' property from the refactoring action */
    action: string;
};


export interface GetEditsForRefactorResponse extends Response {
    body?: RefactorEditInfo;
}

export interface RefactorEditInfo {
    edits: FileCodeEdits[];

    /**
     * An optional location where the editor should start a rename operation once
     * the refactoring edits have been applied
     */
    renameLocation?: Location;
    renameFilename?: string;
}

/**
 * Organize imports by:
 *   1) Removing unused imports
 *   2) Coalescing imports from the same module
 *   3) Sorting imports
 */
export interface OrganizeImportsRequest extends Request {
    command: CommandTypes.OrganizeImports;
    arguments: OrganizeImportsRequestArgs;
}

export type OrganizeImportsScope = GetCombinedCodeFixScope;

export const enum OrganizeImportsMode {
    All = "All",
    SortAndCombine = "SortAndCombine",
    RemoveUnused = "RemoveUnused",
}

export interface OrganizeImportsRequestArgs {
    scope: OrganizeImportsScope;
    /** @deprecated Use `mode` instead */
    skipDestructiveCodeActions?: boolean;
    mode?: OrganizeImportsMode;
}

export interface OrganizeImportsResponse extends Response {
    body: readonly FileCodeEdits[];
}

export interface GetEditsForFileRenameRequest extends Request {
    command: CommandTypes.GetEditsForFileRename;
    arguments: GetEditsForFileRenameRequestArgs;
}

/** Note: Paths may also be directories. */
export interface GetEditsForFileRenameRequestArgs {
    readonly oldFilePath: string;
    readonly newFilePath: string;
}

export interface GetEditsForFileRenameResponse extends Response {
    body: readonly FileCodeEdits[];
}

/**
 * Request for the available codefixes at a specific position.
 */
export interface CodeFixRequest extends Request {
    command: CommandTypes.GetCodeFixes;
    arguments: CodeFixRequestArgs;
}

export interface GetCombinedCodeFixRequest extends Request {
    command: CommandTypes.GetCombinedCodeFix;
    arguments: GetCombinedCodeFixRequestArgs;
}

export interface GetCombinedCodeFixResponse extends Response {
    body: CombinedCodeActions;
}

export interface ApplyCodeActionCommandRequest extends Request {
    command: CommandTypes.ApplyCodeActionCommand;
    arguments: ApplyCodeActionCommandRequestArgs;
}

// All we need is the `success` and `message` fields of Response.
export interface ApplyCodeActionCommandResponse extends Response { }

export interface FileRangeRequestArgs extends FileRequestArgs {
    /**
     * The line number for the request (1-based).
     */
    startLine: number;

    /**
     * The character offset (on the line) for the request (1-based).
     */
    startOffset: number;

    /**
     * Position (can be specified instead of line/offset pair)
     *
     * @internal
     */
    startPosition?: number;

    /**
     * The line number for the request (1-based).
     */
    endLine: number;

    /**
     * The character offset (on the line) for the request (1-based).
     */
    endOffset: number;

    /**
     * Position (can be specified instead of line/offset pair)
     *
     * @internal
     */
    endPosition?: number;
}

/**
 * Instances of this interface specify errorcodes on a specific location in a sourcefile.
 */
export interface CodeFixRequestArgs extends FileRangeRequestArgs {
    /**
     * Errorcodes we want to get the fixes for.
     */
    errorCodes: readonly number[];
}

export interface GetCombinedCodeFixRequestArgs {
    scope: GetCombinedCodeFixScope;
    fixId: {};
}

export interface GetCombinedCodeFixScope {
    type: "file";
    args: FileRequestArgs;
}

export interface ApplyCodeActionCommandRequestArgs {
    /** May also be an array of commands. */
    command: {};
}

/**
 * Response for GetCodeFixes request.
 */
export interface GetCodeFixesResponse extends Response {
    body?: CodeAction[];
}

/**
 * A request whose arguments specify a file location (file, line, col).
 */
export interface FileLocationRequest extends FileRequest {
    arguments: FileLocationRequestArgs;
}

/**
 * A request to get codes of supported code fixes.
 */
export interface GetSupportedCodeFixesRequest extends Request {
    command: CommandTypes.GetSupportedCodeFixes;
}

/**
 * A response for GetSupportedCodeFixesRequest request.
 */
export interface GetSupportedCodeFixesResponse extends Response {
    /**
     * List of error codes supported by the server.
     */
    body?: string[];
}

/**
 * A request to get encoded Syntactic classifications for a span in the file
 *
 * @internal
 */
export interface EncodedSyntacticClassificationsRequest extends FileRequest {
    arguments: EncodedSyntacticClassificationsRequestArgs;
}

/**
 * Arguments for EncodedSyntacticClassificationsRequest request.
 *
 * @internal
 */
export interface EncodedSyntacticClassificationsRequestArgs extends FileRequestArgs {
    /**
     * Start position of the span.
     */
    start: number;
    /**
     * Length of the span.
     */
    length: number;
}

/**
 * A request to get encoded semantic classifications for a span in the file
 */
export interface EncodedSemanticClassificationsRequest extends FileRequest {
    arguments: EncodedSemanticClassificationsRequestArgs;
}

/**
 * Arguments for EncodedSemanticClassificationsRequest request.
 */
export interface EncodedSemanticClassificationsRequestArgs extends FileRequestArgs {
    /**
     * Start position of the span.
     */
    start: number;
    /**
     * Length of the span.
     */
    length: number;
    /**
     * Optional parameter for the semantic highlighting response, if absent it
     * defaults to "original".
     */
    format?: "original" | "2020"
}

/** The response for a EncodedSemanticClassificationsRequest */
export interface EncodedSemanticClassificationsResponse extends Response {
    body?: EncodedSemanticClassificationsResponseBody
}

/**
 * Implementation response message. Gives series of text spans depending on the format ar.
 */
export interface EncodedSemanticClassificationsResponseBody {
    endOfLineState: EndOfLineState;
    spans: number[];
}
/**
 * Arguments in document highlight request; include: filesToSearch, file,
 * line, offset.
 */
export interface DocumentHighlightsRequestArgs extends FileLocationRequestArgs {
    /**
     * List of files to search for document highlights.
     */
    filesToSearch: string[];
}

/**
 * Go to definition request; value of command field is
 * "definition". Return response giving the file locations that
 * define the symbol found in file at location line, col.
 */
export interface DefinitionRequest extends FileLocationRequest {
    command: CommandTypes.Definition;
}

export interface DefinitionAndBoundSpanRequest extends FileLocationRequest {
    readonly command: CommandTypes.DefinitionAndBoundSpan;
}

export interface FindSourceDefinitionRequest extends FileLocationRequest {
    readonly command: CommandTypes.FindSourceDefinition;
}

export interface DefinitionAndBoundSpanResponse extends Response {
    readonly body: DefinitionInfoAndBoundSpan;
}

/** @internal */
export interface EmitOutputRequest extends FileRequest {
    command: CommandTypes.EmitOutput;
    arguments: EmitOutputRequestArgs;
}
/** @internal */
export interface EmitOutputRequestArgs extends FileRequestArgs {
    includeLinePosition?: boolean;
    /** if true - return response as object with emitSkipped and diagnostics */
    richResponse?: boolean;
}
/** @internal */
export interface EmitOutputResponse extends Response {
    readonly body: EmitOutput | ts.EmitOutput;
}
/** @internal */
export interface EmitOutput {
    outputFiles: OutputFile[];
    emitSkipped: boolean;
    diagnostics: Diagnostic[] | DiagnosticWithLinePosition[];
}

/**
 * Go to type request; value of command field is
 * "typeDefinition". Return response giving the file locations that
 * define the type for the symbol found in file at location line, col.
 */
export interface TypeDefinitionRequest extends FileLocationRequest {
    command: CommandTypes.TypeDefinition;
}

/**
 * Go to implementation request; value of command field is
 * "implementation". Return response giving the file locations that
 * implement the symbol found in file at location line, col.
 */
export interface ImplementationRequest extends FileLocationRequest {
    command: CommandTypes.Implementation;
}

/**
 * Location in source code expressed as (one-based) line and (one-based) column offset.
 */
export interface Location {
    line: number;
    offset: number;
}

/**
 * Object found in response messages defining a span of text in source code.
 */
export interface TextSpan {
    /**
     * First character of the definition.
     */
    start: Location;

    /**
     * One character past last character of the definition.
     */
    end: Location;
}

/**
 * Object found in response messages defining a span of text in a specific source file.
 */
export interface FileSpan extends TextSpan {
    /**
     * File containing text span.
     */
    file: string;
}

export interface JSDocTagInfo {
    /** Name of the JSDoc tag */
    name: string;
    /**
     * Comment text after the JSDoc tag -- the text after the tag name until the next tag or end of comment
     * Display parts when UserPreferences.displayPartsForJSDoc is true, flattened to string otherwise.
     */
    text?: string | SymbolDisplayPart[];
}

export interface TextSpanWithContext extends TextSpan {
    contextStart?: Location;
    contextEnd?: Location;
}

export interface FileSpanWithContext extends FileSpan, TextSpanWithContext {
}

export interface DefinitionInfo extends FileSpanWithContext {
    /**
     * When true, the file may or may not exist.
     */
    unverified?: boolean;
}

export interface DefinitionInfoAndBoundSpan {
    definitions: readonly DefinitionInfo[];
    textSpan: TextSpan;
}

/**
 * Definition response message.  Gives text range for definition.
 */
export interface DefinitionResponse extends Response {
    body?: DefinitionInfo[];
}

export interface DefinitionInfoAndBoundSpanResponse extends Response {
    body?: DefinitionInfoAndBoundSpan;
}

/** @deprecated Use `DefinitionInfoAndBoundSpanResponse` instead. */
export type DefinitionInfoAndBoundSpanReponse = DefinitionInfoAndBoundSpanResponse;

/**
 * Definition response message.  Gives text range for definition.
 */
export interface TypeDefinitionResponse extends Response {
    body?: FileSpanWithContext[];
}

/**
 * Implementation response message.  Gives text range for implementations.
 */
export interface ImplementationResponse extends Response {
    body?: FileSpanWithContext[];
}

/**
 * Request to get brace completion for a location in the file.
 */
export interface BraceCompletionRequest extends FileLocationRequest {
    command: CommandTypes.BraceCompletion;
    arguments: BraceCompletionRequestArgs;
}

/**
 * Argument for BraceCompletionRequest request.
 */
export interface BraceCompletionRequestArgs extends FileLocationRequestArgs {
    /**
     * Kind of opening brace
     */
    openingBrace: string;
}

export interface JsxClosingTagRequest extends FileLocationRequest {
    readonly command: CommandTypes.JsxClosingTag;
    readonly arguments: JsxClosingTagRequestArgs;
}

export interface JsxClosingTagRequestArgs extends FileLocationRequestArgs { }

export interface JsxClosingTagResponse extends Response {
    readonly body: TextInsertion;
}

/**
 * @deprecated
 * Get occurrences request; value of command field is
 * "occurrences". Return response giving spans that are relevant
 * in the file at a given line and column.
 */
export interface OccurrencesRequest extends FileLocationRequest {
    command: CommandTypes.Occurrences;
}

/** @deprecated */
export interface OccurrencesResponseItem extends FileSpanWithContext {
    /**
     * True if the occurrence is a write location, false otherwise.
     */
    isWriteAccess: boolean;

    /**
     * True if the occurrence is in a string, undefined otherwise;
     */
    isInString?: true;
}

/** @deprecated */
export interface OccurrencesResponse extends Response {
    body?: OccurrencesResponseItem[];
}

/**
 * Get document highlights request; value of command field is
 * "documentHighlights". Return response giving spans that are relevant
 * in the file at a given line and column.
 */
export interface DocumentHighlightsRequest extends FileLocationRequest {
    command: CommandTypes.DocumentHighlights;
    arguments: DocumentHighlightsRequestArgs;
}

/**
 * Span augmented with extra information that denotes the kind of the highlighting to be used for span.
 */
export interface HighlightSpan extends TextSpanWithContext {
    kind: HighlightSpanKind;
}

/**
 * Represents a set of highligh spans for a give name
 */
export interface DocumentHighlightsItem {
    /**
     * File containing highlight spans.
     */
    file: string;

    /**
     * Spans to highlight in file.
     */
    highlightSpans: HighlightSpan[];
}

/**
 * Response for a DocumentHighlightsRequest request.
 */
export interface DocumentHighlightsResponse extends Response {
    body?: DocumentHighlightsItem[];
}

/**
 * Find references request; value of command field is
 * "references". Return response giving the file locations that
 * reference the symbol found in file at location line, col.
 */
export interface ReferencesRequest extends FileLocationRequest {
    command: CommandTypes.References;
}

export interface ReferencesResponseItem extends FileSpanWithContext {
    /**
     * Text of line containing the reference. Including this
     * with the response avoids latency of editor loading files
     * to show text of reference line (the server already has loaded the referencing files).
     *
     * If {@link UserPreferences.disableLineTextInReferences} is enabled, the property won't be filled
     */
    lineText?: string;

    /**
     * True if reference is a write location, false otherwise.
     */
    isWriteAccess: boolean;

    /**
     * Present only if the search was triggered from a declaration.
     * True indicates that the references refers to the same symbol
     * (i.e. has the same meaning) as the declaration that began the
     * search.
     */
    isDefinition?: boolean;
}

/**
 * The body of a "references" response message.
 */
export interface ReferencesResponseBody {
    /**
     * The file locations referencing the symbol.
     */
    refs: readonly ReferencesResponseItem[];

    /**
     * The name of the symbol.
     */
    symbolName: string;

    /**
     * The start character offset of the symbol (on the line provided by the references request).
     */
    symbolStartOffset: number;

    /**
     * The full display name of the symbol.
     */
    symbolDisplayString: string;
}

/**
 * Response to "references" request.
 */
export interface ReferencesResponse extends Response {
    body?: ReferencesResponseBody;
}

export interface FileReferencesRequest extends FileRequest {
    command: CommandTypes.FileReferences;
}

export interface FileReferencesResponseBody {
    /**
     * The file locations referencing the symbol.
     */
    refs: readonly ReferencesResponseItem[];
    /**
     * The name of the symbol.
     */
    symbolName: string;
}

export interface FileReferencesResponse extends Response {
    body?: FileReferencesResponseBody;
}

/**
 * Argument for RenameRequest request.
 */
export interface RenameRequestArgs extends FileLocationRequestArgs {
    /**
     * Should text at specified location be found/changed in comments?
     */
    findInComments?: boolean;
    /**
     * Should text at specified location be found/changed in strings?
     */
    findInStrings?: boolean;
}

/**
 * Rename request; value of command field is "rename". Return
 * response giving the file locations that reference the symbol
 * found in file at location line, col. Also return full display
 * name of the symbol so that client can print it unambiguously.
 */
export interface RenameRequest extends FileLocationRequest {
    command: CommandTypes.Rename;
    arguments: RenameRequestArgs;
}

/** @internal */
export interface RenameFullRequest extends FileLocationRequest {
    readonly command: CommandTypes.RenameLocationsFull;
    readonly arguments: RenameRequestArgs;
}

/** @internal */
export interface RenameFullResponse extends Response {
    readonly body: readonly RenameLocation[];
}

/**
 * Information about the item to be renamed.
 */
export type RenameInfo = RenameInfoSuccess | RenameInfoFailure;
export interface RenameInfoSuccess {
    /**
     * True if item can be renamed.
     */
    canRename: true;
    /**
     * File or directory to rename.
     * If set, `getEditsForFileRename` should be called instead of `findRenameLocations`.
     */
    fileToRename?: string;

    /**
     * Display name of the item to be renamed.
     */
    displayName: string;

    /**
     * Full display name of item to be renamed.
     */
    fullDisplayName: string;

    /**
     * The items's kind (such as 'className' or 'parameterName' or plain 'text').
     */
    kind: ScriptElementKind;

    /**
     * Optional modifiers for the kind (such as 'public').
     */
    kindModifiers: string;

    /** Span of text to rename. */
    triggerSpan: TextSpan;
}
export interface RenameInfoFailure {
    canRename: false;
    /**
     * Error message if item can not be renamed.
     */
    localizedErrorMessage: string;
}

/**
 *  A group of text spans, all in 'file'.
 */
export interface SpanGroup {
    /** The file to which the spans apply */
    file: string;
    /** The text spans in this group */
    locs: RenameTextSpan[];
}

export interface RenameTextSpan extends TextSpanWithContext {
    readonly prefixText?: string;
    readonly suffixText?: string;
}

export interface RenameResponseBody {
    /**
     * Information about the item to be renamed.
     */
    info: RenameInfo;

    /**
     * An array of span groups (one per file) that refer to the item to be renamed.
     */
    locs: readonly SpanGroup[];
}

/**
 * Rename response message.
 */
export interface RenameResponse extends Response {
    body?: RenameResponseBody;
}

/**
 * Represents a file in external project.
 * External project is project whose set of files, compilation options and open\close state
 * is maintained by the client (i.e. if all this data come from .csproj file in Visual Studio).
 * External project will exist even if all files in it are closed and should be closed explicitly.
 * If external project includes one or more tsconfig.json/jsconfig.json files then tsserver will
 * create configured project for every config file but will maintain a link that these projects were created
 * as a result of opening external project so they should be removed once external project is closed.
 */
export interface ExternalFile {
    /**
     * Name of file file
     */
    fileName: string;
    /**
     * Script kind of the file
     */
    scriptKind?: ScriptKindName | ScriptKind;
    /**
     * Whether file has mixed content (i.e. .cshtml file that combines html markup with C#/JavaScript)
     */
    hasMixedContent?: boolean;
    /**
     * Content of the file
     */
    content?: string;
}

/**
 * Represent an external project
 */
export interface ExternalProject {
    /**
     * Project name
     */
    projectFileName: string;
    /**
     * List of root files in project
     */
    rootFiles: ExternalFile[];
    /**
     * Compiler options for the project
     */
    options: ExternalProjectCompilerOptions;
    /**
     * @deprecated typingOptions. Use typeAcquisition instead
     */
    typingOptions?: TypeAcquisition;
    /**
     * Explicitly specified type acquisition for the project
     */
    typeAcquisition?: TypeAcquisition;
}

export interface CompileOnSaveMixin {
    /**
     * If compile on save is enabled for the project
     */
    compileOnSave?: boolean;
}

/**
 * For external projects, some of the project settings are sent together with
 * compiler settings.
 */
export type ExternalProjectCompilerOptions = CompilerOptions & CompileOnSaveMixin & WatchOptions;

/**
 * Contains information about current project version
 *
 * @internal
 */
export interface ProjectVersionInfo {
    /**
     * Project name
     */
    projectName: string;
    /**
     * true if project is inferred or false if project is external or configured
     */
    isInferred: boolean;
    /**
     * Project version
     */
    version: number;
    /**
     * Current set of compiler options for project
     */
    options: ts.CompilerOptions;
    /**
     * true if project language service is disabled
     */
    languageServiceDisabled: boolean;
    /**
     * Filename of the last file analyzed before disabling the language service. undefined, if the language service is enabled.
     */
    lastFileExceededProgramSize?: string;
}

export interface FileWithProjectReferenceRedirectInfo {
    /**
     * Name of file
     */
    fileName: string;

    /**
     * True if the file is primarily included in a referenced project
     */
    isSourceOfProjectReferenceRedirect: boolean;
}

/**
 * Represents a set of changes that happen in project
 */
export interface ProjectChanges {
    /**
     * List of added files
     */
    added: string[] | FileWithProjectReferenceRedirectInfo[];
    /**
     * List of removed files
     */
    removed: string[] | FileWithProjectReferenceRedirectInfo[];
    /**
     * List of updated files
     */
    updated: string[] | FileWithProjectReferenceRedirectInfo[];
    /**
     * List of files that have had their project reference redirect status updated
     * Only provided when the synchronizeProjectList request has includeProjectReferenceRedirectInfo set to true
     */
    updatedRedirects?: FileWithProjectReferenceRedirectInfo[];
}

/**
 * Describes set of files in the project.
 * info might be omitted in case of inferred projects
 * if files is set - then this is the entire set of files in the project
 * if changes is set - then this is the set of changes that should be applied to existing project
 * otherwise - assume that nothing is changed
 *
 * @internal
 */
export interface ProjectFiles {
    /**
     * Information about project verison
     */
    info?: ProjectVersionInfo;
    /**
     * List of files in project (might be omitted if current state of project can be computed using only information from 'changes')
     * This property will have type FileWithProjectReferenceRedirectInfo[] if includeProjectReferenceRedirectInfo is set to true in
     * the corresponding SynchronizeProjectList request; otherwise, it will have type string[].
     */
    files?: string[] | FileWithProjectReferenceRedirectInfo[];
    /**
     * Set of changes in project (omitted if the entire set of files in project should be replaced)
     */
    changes?: ProjectChanges;
}

/**
 * Combines project information with project level errors.
 *
 * @internal
 */
export interface ProjectFilesWithDiagnostics extends ProjectFiles {
    /**
     * List of errors in project
     */
    projectErrors: DiagnosticWithLinePosition[];
}

/**
 * Represents set of changes in open file
 *
 * @internal
 */
export interface ChangedOpenFile {
    /**
     * Name of file
     */
    fileName: string;
    /**
     * List of changes that should be applied to known open file
     */
    changes: TextChange[];
}


/**
 * Information found in a configure request.
 */
export interface ConfigureRequestArguments {

    /**
     * Information about the host, for example 'Emacs 24.4' or
     * 'Sublime Text version 3075'
     */
    hostInfo?: string;

    /**
     * If present, tab settings apply only to this file.
     */
    file?: string;

    /**
     * The format options to use during formatting and other code editing features.
     */
    formatOptions?: FormatCodeSettings;

    preferences?: UserPreferences;

    /**
     * The host's additional supported .js file extensions
     */
    extraFileExtensions?: FileExtensionInfo[];

    watchOptions?: WatchOptions;
}

export const enum WatchFileKind {
    FixedPollingInterval = "FixedPollingInterval",
    PriorityPollingInterval = "PriorityPollingInterval",
    DynamicPriorityPolling = "DynamicPriorityPolling",
    FixedChunkSizePolling = "FixedChunkSizePolling",
    UseFsEvents = "UseFsEvents",
    UseFsEventsOnParentDirectory = "UseFsEventsOnParentDirectory",
}

export const enum WatchDirectoryKind {
    UseFsEvents = "UseFsEvents",
    FixedPollingInterval = "FixedPollingInterval",
    DynamicPriorityPolling = "DynamicPriorityPolling",
    FixedChunkSizePolling = "FixedChunkSizePolling",
}

export const enum PollingWatchKind {
    FixedInterval = "FixedInterval",
    PriorityInterval = "PriorityInterval",
    DynamicPriority = "DynamicPriority",
    FixedChunkSize = "FixedChunkSize",
}

export interface WatchOptions {
    watchFile?: WatchFileKind | ts.WatchFileKind;
    watchDirectory?: WatchDirectoryKind | ts.WatchDirectoryKind;
    fallbackPolling?: PollingWatchKind | ts.PollingWatchKind;
    synchronousWatchDirectory?: boolean;
    excludeDirectories?: string[];
    excludeFiles?: string[];
    [option: string]: CompilerOptionsValue | undefined;
}

/**
 *  Configure request; value of command field is "configure".  Specifies
 *  host information, such as host type, tab size, and indent size.
 */
export interface ConfigureRequest extends Request {
    command: CommandTypes.Configure;
    arguments: ConfigureRequestArguments;
}

/**
 * Response to "configure" request.  This is just an acknowledgement, so
 * no body field is required.
 */
export interface ConfigureResponse extends Response {
}

export interface ConfigurePluginRequestArguments {
    pluginName: string;
    configuration: any;
}

export interface ConfigurePluginRequest extends Request {
    command: CommandTypes.ConfigurePlugin;
    arguments: ConfigurePluginRequestArguments;
}

export interface ConfigurePluginResponse extends Response {
}

export interface SelectionRangeRequest extends FileRequest {
    command: CommandTypes.SelectionRange;
    arguments: SelectionRangeRequestArgs;
}

export interface SelectionRangeRequestArgs extends FileRequestArgs {
    locations: Location[];
}

export interface SelectionRangeResponse extends Response {
    body?: SelectionRange[];
}

export interface SelectionRange {
    textSpan: TextSpan;
    parent?: SelectionRange;
}

export interface ToggleLineCommentRequest extends FileRequest {
    command: CommandTypes.ToggleLineComment;
    arguments: FileRangeRequestArgs;
}

export interface ToggleMultilineCommentRequest extends FileRequest {
    command: CommandTypes.ToggleMultilineComment;
    arguments: FileRangeRequestArgs;
}

export interface CommentSelectionRequest extends FileRequest {
    command: CommandTypes.CommentSelection;
    arguments: FileRangeRequestArgs;
}

export interface UncommentSelectionRequest extends FileRequest {
    command: CommandTypes.UncommentSelection;
    arguments: FileRangeRequestArgs;
}

/**
 *  Information found in an "open" request.
 */
export interface OpenRequestArgs extends FileRequestArgs {
    /**
     * Used when a version of the file content is known to be more up to date than the one on disk.
     * Then the known content will be used upon opening instead of the disk copy
     */
    fileContent?: string;
    /**
     * Used to specify the script kind of the file explicitly. It could be one of the following:
     *      "TS", "JS", "TSX", "JSX"
     */
    scriptKindName?: ScriptKindName;
    /**
     * Used to limit the searching for project config file. If given the searching will stop at this
     * root path; otherwise it will go all the way up to the dist root path.
     */
    projectRootPath?: string;
}

export type ScriptKindName = "TS" | "JS" | "TSX" | "JSX" | "ETS";

/**
 * Open request; value of command field is "open". Notify the
 * server that the client has file open.  The server will not
 * monitor the filesystem for changes in this file and will assume
 * that the client is updating the server (using the change and/or
 * reload messages) when the file changes. Server does not currently
 * send a response to an open request.
 */
export interface OpenRequest extends Request {
    command: CommandTypes.Open;
    arguments: OpenRequestArgs;
}

/**
 * Request to open or update external project
 */
export interface OpenExternalProjectRequest extends Request {
    command: CommandTypes.OpenExternalProject;
    arguments: OpenExternalProjectArgs;
}

/**
 * Arguments to OpenExternalProjectRequest request
 */
export type OpenExternalProjectArgs = ExternalProject;

/**
 * Request to open multiple external projects
 */
export interface OpenExternalProjectsRequest extends Request {
    command: CommandTypes.OpenExternalProjects;
    arguments: OpenExternalProjectsArgs;
}

/**
 * Arguments to OpenExternalProjectsRequest
 */
export interface OpenExternalProjectsArgs {
    /**
     * List of external projects to open or update
     */
    projects: ExternalProject[];
}

/**
 * Response to OpenExternalProjectRequest request. This is just an acknowledgement, so
 * no body field is required.
 */
export interface OpenExternalProjectResponse extends Response {
}

/**
 * Response to OpenExternalProjectsRequest request. This is just an acknowledgement, so
 * no body field is required.
 */
export interface OpenExternalProjectsResponse extends Response {
}

/**
 * Request to close external project.
 */
export interface CloseExternalProjectRequest extends Request {
    command: CommandTypes.CloseExternalProject;
    arguments: CloseExternalProjectRequestArgs;
}

/**
 * Arguments to CloseExternalProjectRequest request
 */
export interface CloseExternalProjectRequestArgs {
    /**
     * Name of the project to close
     */
    projectFileName: string;
}

/**
 * Response to CloseExternalProjectRequest request. This is just an acknowledgement, so
 * no body field is required.
 */
export interface CloseExternalProjectResponse extends Response {
}

/**
 * Request to check if given list of projects is up-to-date and synchronize them if necessary
 *
 * @internal
 */
export interface SynchronizeProjectListRequest extends Request {
    arguments: SynchronizeProjectListRequestArgs;
}

/**
 * Arguments to SynchronizeProjectListRequest
 *
 * @internal
 */
export interface SynchronizeProjectListRequestArgs {
    /**
     * List of last known projects
     */
    knownProjects: ProjectVersionInfo[];
    /**
     * If true, response specifies whether or not each file in each project
     * is a source from a project reference redirect
     */
    includeProjectReferenceRedirectInfo?: boolean;
}

/**
 * Request to synchronize list of open files with the client
 *
 * @internal
 */
export interface ApplyChangedToOpenFilesRequest extends Request {
    arguments: ApplyChangedToOpenFilesRequestArgs;
}

/**
 * Arguments to ApplyChangedToOpenFilesRequest
 *
 * @internal
 */
export interface ApplyChangedToOpenFilesRequestArgs {
    /**
     * List of newly open files
     */
    openFiles?: ExternalFile[];
    /**
     * List of open files files that were changes
     */
    changedFiles?: ChangedOpenFile[];
    /**
     * List of files that were closed
     */
    closedFiles?: string[];
}

/**
 * Request to synchronize list of open files with the client
 */
export interface UpdateOpenRequest extends Request {
    command: CommandTypes.UpdateOpen;
    arguments: UpdateOpenRequestArgs;
}

/**
 * Arguments to UpdateOpenRequest
 */
export interface UpdateOpenRequestArgs {
    /**
     * List of newly open files
     */
    openFiles?: OpenRequestArgs[];
    /**
     * List of open files files that were changes
     */
    changedFiles?: FileCodeEdits[];
    /**
     * List of files that were closed
     */
    closedFiles?: string[];
}

/**
 * External projects have a typeAcquisition option so they need to be added separately to compiler options for inferred projects.
 */
export type InferredProjectCompilerOptions = ExternalProjectCompilerOptions & TypeAcquisition;

/**
 * Request to set compiler options for inferred projects.
 * External projects are opened / closed explicitly.
 * Configured projects are opened when user opens loose file that has 'tsconfig.json' or 'jsconfig.json' anywhere in one of containing folders.
 * This configuration file will be used to obtain a list of files and configuration settings for the project.
 * Inferred projects are created when user opens a loose file that is not the part of external project
 * or configured project and will contain only open file and transitive closure of referenced files if 'useOneInferredProject' is false,
 * or all open loose files and its transitive closure of referenced files if 'useOneInferredProject' is true.
 */
export interface SetCompilerOptionsForInferredProjectsRequest extends Request {
    command: CommandTypes.CompilerOptionsForInferredProjects;
    arguments: SetCompilerOptionsForInferredProjectsArgs;
}

/**
 * Argument for SetCompilerOptionsForInferredProjectsRequest request.
 */
export interface SetCompilerOptionsForInferredProjectsArgs {
    /**
     * Compiler options to be used with inferred projects.
     */
    options: InferredProjectCompilerOptions;

    /**
     * Specifies the project root path used to scope compiler options.
     * It is an error to provide this property if the server has not been started with
     * `useInferredProjectPerProjectRoot` enabled.
     */
    projectRootPath?: string;
}

/**
 * Response to SetCompilerOptionsForInferredProjectsResponse request. This is just an acknowledgement, so
 * no body field is required.
 */
export interface SetCompilerOptionsForInferredProjectsResponse extends Response {
}

/**
 *  Exit request; value of command field is "exit".  Ask the server process
 *  to exit.
 */
export interface ExitRequest extends Request {
    command: CommandTypes.Exit;
}

/**
 * Close request; value of command field is "close". Notify the
 * server that the client has closed a previously open file.  If
 * file is still referenced by open files, the server will resume
 * monitoring the filesystem for changes to file.  Server does not
 * currently send a response to a close request.
 */
export interface CloseRequest extends FileRequest {
    command: CommandTypes.Close;
}

/**
 * Request to obtain the list of files that should be regenerated if target file is recompiled.
 * NOTE: this us query-only operation and does not generate any output on disk.
 */
export interface CompileOnSaveAffectedFileListRequest extends FileRequest {
    command: CommandTypes.CompileOnSaveAffectedFileList;
}

/**
 * Contains a list of files that should be regenerated in a project
 */
export interface CompileOnSaveAffectedFileListSingleProject {
    /**
     * Project name
     */
    projectFileName: string;
    /**
     * List of files names that should be recompiled
     */
    fileNames: string[];

    /**
     * true if project uses outFile or out compiler option
     */
    projectUsesOutFile: boolean;
}

/**
 * Response for CompileOnSaveAffectedFileListRequest request;
 */
export interface CompileOnSaveAffectedFileListResponse extends Response {
    body: CompileOnSaveAffectedFileListSingleProject[];
}

/**
 * Request to recompile the file. All generated outputs (.js, .d.ts or .js.map files) is written on disk.
 */
export interface CompileOnSaveEmitFileRequest extends FileRequest {
    command: CommandTypes.CompileOnSaveEmitFile;
    arguments: CompileOnSaveEmitFileRequestArgs;
}

/**
 * Arguments for CompileOnSaveEmitFileRequest
 */
export interface CompileOnSaveEmitFileRequestArgs extends FileRequestArgs {
    /**
     * if true - then file should be recompiled even if it does not have any changes.
     */
    forced?: boolean;
    includeLinePosition?: boolean;
    /** if true - return response as object with emitSkipped and diagnostics */
    richResponse?: boolean;
}

export interface CompileOnSaveEmitFileResponse extends Response {
    body: boolean | EmitResult;
}

export interface EmitResult {
    emitSkipped: boolean;
    diagnostics: Diagnostic[] | DiagnosticWithLinePosition[];
}

/**
 * Quickinfo request; value of command field is
 * "quickinfo". Return response giving a quick type and
 * documentation string for the symbol found in file at location
 * line, col.
 */
export interface QuickInfoRequest extends FileLocationRequest {
    command: CommandTypes.Quickinfo;
    arguments: FileLocationRequestArgs;
}

/**
 * Body of QuickInfoResponse.
 */
export interface QuickInfoResponseBody {
    /**
     * The symbol's kind (such as 'className' or 'parameterName' or plain 'text').
     */
    kind: ScriptElementKind;

    /**
     * Optional modifiers for the kind (such as 'public').
     */
    kindModifiers: string;

    /**
     * Starting file location of symbol.
     */
    start: Location;

    /**
     * One past last character of symbol.
     */
    end: Location;

    /**
     * Type and kind of symbol.
     */
    displayString: string;

    /**
     * Documentation associated with symbol.
     * Display parts when UserPreferences.displayPartsForJSDoc is true, flattened to string otherwise.
     */
    documentation: string | SymbolDisplayPart[];

    /**
     * JSDoc tags associated with symbol.
     */
    tags: JSDocTagInfo[];
}

/**
 * Quickinfo response message.
 */
export interface QuickInfoResponse extends Response {
    body?: QuickInfoResponseBody;
}

/**
 * Arguments for format messages.
 */
export interface FormatRequestArgs extends FileLocationRequestArgs {
    /**
     * Last line of range for which to format text in file.
     */
    endLine: number;

    /**
     * Character offset on last line of range for which to format text in file.
     */
    endOffset: number;

    /**
     * End position of the range for which to format text in file.
     *
     * @internal
     */
    endPosition?: number;
    /**
     * Format options to be used.
     */
    options?: FormatCodeSettings;
}

/**
 * Format request; value of command field is "format".  Return
 * response giving zero or more edit instructions.  The edit
 * instructions will be sorted in file order.  Applying the edit
 * instructions in reverse to file will result in correctly
 * reformatted text.
 */
export interface FormatRequest extends FileLocationRequest {
    command: CommandTypes.Format;
    arguments: FormatRequestArgs;
}

/**
 * Object found in response messages defining an editing
 * instruction for a span of text in source code.  The effect of
 * this instruction is to replace the text starting at start and
 * ending one character before end with newText. For an insertion,
 * the text span is empty.  For a deletion, newText is empty.
 */
export interface CodeEdit {
    /**
     * First character of the text span to edit.
     */
    start: Location;

    /**
     * One character past last character of the text span to edit.
     */
    end: Location;

    /**
     * Replace the span defined above with this string (may be
     * the empty string).
     */
    newText: string;
}

export interface FileCodeEdits {
    fileName: string;
    textChanges: CodeEdit[];
}

export interface CodeFixResponse extends Response {
    /** The code actions that are available */
    body?: CodeFixAction[];
}

export interface CodeAction {
    /** Description of the code action to display in the UI of the editor */
    description: string;
    /** Text changes to apply to each file as part of the code action */
    changes: FileCodeEdits[];
    /** A command is an opaque object that should be passed to `ApplyCodeActionCommandRequestArgs` without modification.  */
    commands?: {}[];
}

export interface CombinedCodeActions {
    changes: readonly FileCodeEdits[];
    commands?: readonly {}[];
}

export interface CodeFixAction extends CodeAction {
    /** Short name to identify the fix, for use by telemetry. */
    fixName: string;
    /**
     * If present, one may call 'getCombinedCodeFix' with this fixId.
     * This may be omitted to indicate that the code fix can't be applied in a group.
     */
    fixId?: {};
    /** Should be present if and only if 'fixId' is. */
    fixAllDescription?: string;
}

/**
 * Format and format on key response message.
 */
export interface FormatResponse extends Response {
    body?: CodeEdit[];
}

/**
 * Arguments for format on key messages.
 */
export interface FormatOnKeyRequestArgs extends FileLocationRequestArgs {
    /**
     * Key pressed (';', '\n', or '}').
     */
    key: string;

    options?: FormatCodeSettings;
}

/**
 * Format on key request; value of command field is
 * "formatonkey". Given file location and key typed (as string),
 * return response giving zero or more edit instructions.  The
 * edit instructions will be sorted in file order.  Applying the
 * edit instructions in reverse to file will result in correctly
 * reformatted text.
 */
export interface FormatOnKeyRequest extends FileLocationRequest {
    command: CommandTypes.Formatonkey;
    arguments: FormatOnKeyRequestArgs;
}

export type CompletionsTriggerCharacter = "." | '"' | "'" | "`" | "/" | "@" | "<" | "#" | " ";

export const enum CompletionTriggerKind {
    /** Completion was triggered by typing an identifier, manual invocation (e.g Ctrl+Space) or via API. */
    Invoked = 1,

    /** Completion was triggered by a trigger character. */
    TriggerCharacter = 2,

    /** Completion was re-triggered as the current completion list is incomplete. */
    TriggerForIncompleteCompletions = 3,
}

/**
 * Arguments for completions messages.
 */
export interface CompletionsRequestArgs extends FileLocationRequestArgs {
    /**
     * Optional prefix to apply to possible completions.
     */
    prefix?: string;
    /**
     * Character that was responsible for triggering completion.
     * Should be `undefined` if a user manually requested completion.
     */
    triggerCharacter?: CompletionsTriggerCharacter;
    triggerKind?: CompletionTriggerKind;
    /**
     * @deprecated Use UserPreferences.includeCompletionsForModuleExports
     */
    includeExternalModuleExports?: boolean;
    /**
     * @deprecated Use UserPreferences.includeCompletionsWithInsertText
     */
    includeInsertTextCompletions?: boolean;
}

export interface EtsOptions {
    render: { method: string[]; decorator: string[] };
    components: string[];
    libs: string[];
    extend: {
        decorator: string[];
        components: { name: string; type: string; instance: string }[];
    };
    styles: {
        decorator: string;
        component: { name: string; type: string; instance: string };
        property: string;
    };
    concurrent: {
        decorator: string;
    };
    customComponent?: string;
    propertyDecorators: {
        name: string;
        needInitialization: boolean;
    }[];
    emitDecorators: {
        name: string,
        emitParameters: boolean
    }[];
    syntaxComponents: {
        paramsUICallback: string[];
        attrUICallback: {
            name: string;
            attributes: string[];
        }[];
    };
}

/**
 * Completions request; value of command field is "completions".
 * Given a file location (file, line, col) and a prefix (which may
 * be the empty string), return the possible completions that
 * begin with prefix.
 */
export interface CompletionsRequest extends FileLocationRequest {
    command: CommandTypes.Completions | CommandTypes.CompletionInfo;
    arguments: CompletionsRequestArgs;
}

/**
 * Arguments for completion details request.
 */
export interface CompletionDetailsRequestArgs extends FileLocationRequestArgs {
    /**
     * Names of one or more entries for which to obtain details.
     */
    entryNames: (string | CompletionEntryIdentifier)[];
}

export interface CompletionEntryIdentifier {
    name: string;
    source?: string;
    data?: unknown;
}

/**
 * Completion entry details request; value of command field is
 * "completionEntryDetails".  Given a file location (file, line,
 * col) and an array of completion entry names return more
 * detailed information for each completion entry.
 */
export interface CompletionDetailsRequest extends FileLocationRequest {
    command: CommandTypes.CompletionDetails;
    arguments: CompletionDetailsRequestArgs;
}

/**
 * Part of a symbol description.
 */
export interface SymbolDisplayPart {
    /**
     * Text of an item describing the symbol.
     */
    text: string;

    /**
     * The symbol's kind (such as 'className' or 'parameterName' or plain 'text').
     */
    kind: string;
}

/** A part of a symbol description that links from a jsdoc @link tag to a declaration */
export interface JSDocLinkDisplayPart extends SymbolDisplayPart {
    /** The location of the declaration that the @link tag links to. */
    target: FileSpan;
}

/**
 * An item found in a completion response.
 */
export interface CompletionEntry {
    /**
     * The symbol's name.
     */
    name: string;
    /**
     * The symbol's kind (such as 'className' or 'parameterName').
     */
    kind: ScriptElementKind;
    /**
     * Optional modifiers for the kind (such as 'public').
     */
    kindModifiers?: string;
    /**
     * A string that is used for comparing completion items so that they can be ordered.  This
     * is often the same as the name but may be different in certain circumstances.
     */
    sortText: string;
    /**
     * Text to insert instead of `name`.
     * This is used to support bracketed completions; If `name` might be "a-b" but `insertText` would be `["a-b"]`,
     * coupled with `replacementSpan` to replace a dotted access with a bracket access.
     */
    insertText?: string;
    /**
     * `insertText` should be interpreted as a snippet if true.
     */
    isSnippet?: true;
    /**
     * An optional span that indicates the text to be replaced by this completion item.
     * If present, this span should be used instead of the default one.
     * It will be set if the required span differs from the one generated by the default replacement behavior.
     */
    replacementSpan?: TextSpan;
    /**
     * Indicates whether commiting this completion entry will require additional code actions to be
     * made to avoid errors. The CompletionEntryDetails will have these actions.
     */
    hasAction?: true;
    /**
     * Identifier (not necessarily human-readable) identifying where this completion came from.
     */
    source?: string;
    /**
     * Human-readable description of the `source`.
     */
    sourceDisplay?: SymbolDisplayPart[];
    /**
     * Additional details for the label.
     */
    labelDetails?: CompletionEntryLabelDetails;
    /**
     * If true, this completion should be highlighted as recommended. There will only be one of these.
     * This will be set when we know the user should write an expression with a certain type and that type is an enum or constructable class.
     * Then either that enum/class or a namespace containing it will be the recommended symbol.
     */
    isRecommended?: true;
    /**
     * If true, this completion was generated from traversing the name table of an unchecked JS file,
     * and therefore may not be accurate.
     */
    isFromUncheckedFile?: true;
    /**
     * If true, this completion was for an auto-import of a module not yet in the program, but listed
     * in the project package.json. Used for telemetry reporting.
     */
    isPackageJsonImport?: true;
    /**
     * If true, this completion was an auto-import-style completion of an import statement (i.e., the
     * module specifier was inserted along with the imported identifier). Used for telemetry reporting.
     */
    isImportStatementCompletion?: true;
    /**
     * A property to be sent back to TS Server in the CompletionDetailsRequest, along with `name`,
     * that allows TS Server to look up the symbol represented by the completion item, disambiguating
     * items with the same name.
     */
    data?: unknown;
    /**
     * Js Doc info with symbol.
     */
    jsDoc?: JsDocTagInfo[];
    /**
     * Displayparts info with symbol.
     */
    displayParts?: SymbolDisplayPart[];
}

export interface CompletionEntryLabelDetails {
    /**
     * An optional string which is rendered less prominently directly after
     * {@link CompletionEntry.name name}, without any spacing. Should be
     * used for function signatures or type annotations.
     */
    detail?: string;
    /**
     * An optional string which is rendered less prominently after
     * {@link CompletionEntryLabelDetails.detail}. Should be used for fully qualified
     * names or file path.
     */
    description?: string;
}

/**
 * Additional completion entry details, available on demand
 */
export interface CompletionEntryDetails {
    /**
     * The symbol's name.
     */
    name: string;
    /**
     * The symbol's kind (such as 'className' or 'parameterName').
     */
    kind: ScriptElementKind;
    /**
     * Optional modifiers for the kind (such as 'public').
     */
    kindModifiers: string;
    /**
     * Display parts of the symbol (similar to quick info).
     */
    displayParts: SymbolDisplayPart[];

    /**
     * Documentation strings for the symbol.
     */
    documentation?: SymbolDisplayPart[];

    /**
     * JSDoc tags for the symbol.
     */
    tags?: JSDocTagInfo[];

    /**
     * The associated code actions for this entry
     */
    codeActions?: CodeAction[];

    /**
     * @deprecated Use `sourceDisplay` instead.
     */
    source?: SymbolDisplayPart[];

    /**
     * Human-readable description of the `source` from the CompletionEntry.
     */
    sourceDisplay?: SymbolDisplayPart[];
}

/** @deprecated Prefer CompletionInfoResponse, which supports several top-level fields in addition to the array of entries. */
export interface CompletionsResponse extends Response {
    body?: CompletionEntry[];
}

export interface CompletionInfoResponse extends Response {
    body?: CompletionInfo;
}

export interface CompletionInfo {
    readonly flags?: number;
    readonly isGlobalCompletion: boolean;
    readonly isMemberCompletion: boolean;
    readonly isNewIdentifierLocation: boolean;
    /**
     * In the absence of `CompletionEntry["replacementSpan"]`, the editor may choose whether to use
     * this span or its default one. If `CompletionEntry["replacementSpan"]` is defined, that span
     * must be used to commit that completion entry.
     */
    readonly optionalReplacementSpan?: TextSpan;
    readonly isIncomplete?: boolean;
    readonly entries: readonly CompletionEntry[];
}

export interface CompletionDetailsResponse extends Response {
    body?: CompletionEntryDetails[];
}

/**
 * Signature help information for a single parameter
 */
export interface SignatureHelpParameter {

    /**
     * The parameter's name
     */
    name: string;

    /**
     * Documentation of the parameter.
     */
    documentation: SymbolDisplayPart[];

    /**
     * Display parts of the parameter.
     */
    displayParts: SymbolDisplayPart[];

    /**
     * Whether the parameter is optional or not.
     */
    isOptional: boolean;
}

/**
 * Represents a single signature to show in signature help.
 */
export interface SignatureHelpItem {

    /**
     * Whether the signature accepts a variable number of arguments.
     */
    isVariadic: boolean;

    /**
     * The prefix display parts.
     */
    prefixDisplayParts: SymbolDisplayPart[];

    /**
     * The suffix display parts.
     */
    suffixDisplayParts: SymbolDisplayPart[];

    /**
     * The separator display parts.
     */
    separatorDisplayParts: SymbolDisplayPart[];

    /**
     * The signature helps items for the parameters.
     */
    parameters: SignatureHelpParameter[];

    /**
     * The signature's documentation
     */
    documentation: SymbolDisplayPart[];

    /**
     * The signature's JSDoc tags
     */
    tags: JSDocTagInfo[];
}

/**
 * Signature help items found in the response of a signature help request.
 */
export interface SignatureHelpItems {

    /**
     * The signature help items.
     */
    items: SignatureHelpItem[];

    /**
     * The span for which signature help should appear on a signature
     */
    applicableSpan: TextSpan;

    /**
     * The item selected in the set of available help items.
     */
    selectedItemIndex: number;

    /**
     * The argument selected in the set of parameters.
     */
    argumentIndex: number;

    /**
     * The argument count
     */
    argumentCount: number;
}

export type SignatureHelpTriggerCharacter = "," | "(" | "<";
export type SignatureHelpRetriggerCharacter = SignatureHelpTriggerCharacter | ")";

/**
 * Arguments of a signature help request.
 */
export interface SignatureHelpRequestArgs extends FileLocationRequestArgs {
    /**
     * Reason why signature help was invoked.
     * See each individual possible
     */
    triggerReason?: SignatureHelpTriggerReason;
}

export type SignatureHelpTriggerReason =
    | SignatureHelpInvokedReason
    | SignatureHelpCharacterTypedReason
    | SignatureHelpRetriggeredReason;

/**
 * Signals that the user manually requested signature help.
 * The language service will unconditionally attempt to provide a result.
 */
export interface SignatureHelpInvokedReason {
    kind: "invoked";
    triggerCharacter?: undefined;
}

/**
 * Signals that the signature help request came from a user typing a character.
 * Depending on the character and the syntactic context, the request may or may not be served a result.
 */
export interface SignatureHelpCharacterTypedReason {
    kind: "characterTyped";
    /**
     * Character that was responsible for triggering signature help.
     */
    triggerCharacter: SignatureHelpTriggerCharacter;
}

/**
 * Signals that this signature help request came from typing a character or moving the cursor.
 * This should only occur if a signature help session was already active and the editor needs to see if it should adjust.
 * The language service will unconditionally attempt to provide a result.
 * `triggerCharacter` can be `undefined` for a retrigger caused by a cursor move.
 */
export interface SignatureHelpRetriggeredReason {
    kind: "retrigger";
    /**
     * Character that was responsible for triggering signature help.
     */
    triggerCharacter?: SignatureHelpRetriggerCharacter;
}

/**
 * Signature help request; value of command field is "signatureHelp".
 * Given a file location (file, line, col), return the signature
 * help.
 */
export interface SignatureHelpRequest extends FileLocationRequest {
    command: CommandTypes.SignatureHelp;
    arguments: SignatureHelpRequestArgs;
}

/**
 * Response object for a SignatureHelpRequest.
 */
export interface SignatureHelpResponse extends Response {
    body?: SignatureHelpItems;
}

export type InlayHintKind = "Type" | "Parameter" | "Enum";

export interface InlayHintsRequestArgs extends FileRequestArgs {
    /**
     * Start position of the span.
     */
    start: number;
    /**
     * Length of the span.
     */
    length: number;
}

export interface InlayHintsRequest extends Request {
    command: CommandTypes.ProvideInlayHints;
    arguments: InlayHintsRequestArgs;
}

export interface InlayHintItem {
    text: string;
    position: Location;
    kind: InlayHintKind;
    whitespaceBefore?: boolean;
    whitespaceAfter?: boolean;
}

export interface InlayHintsResponse extends Response {
    body?: InlayHintItem[];
}

/**
 * Synchronous request for semantic diagnostics of one file.
 */
export interface SemanticDiagnosticsSyncRequest extends FileRequest {
    command: CommandTypes.SemanticDiagnosticsSync;
    arguments: SemanticDiagnosticsSyncRequestArgs;
}

export interface SemanticDiagnosticsSyncRequestArgs extends FileRequestArgs {
    includeLinePosition?: boolean;
}

/**
 * Response object for synchronous sematic diagnostics request.
 */
export interface SemanticDiagnosticsSyncResponse extends Response {
    body?: Diagnostic[] | DiagnosticWithLinePosition[];
}

export interface SuggestionDiagnosticsSyncRequest extends FileRequest {
    command: CommandTypes.SuggestionDiagnosticsSync;
    arguments: SuggestionDiagnosticsSyncRequestArgs;
}

export type SuggestionDiagnosticsSyncRequestArgs = SemanticDiagnosticsSyncRequestArgs;
export type SuggestionDiagnosticsSyncResponse = SemanticDiagnosticsSyncResponse;

/**
 * Synchronous request for syntactic diagnostics of one file.
 */
export interface SyntacticDiagnosticsSyncRequest extends FileRequest {
    command: CommandTypes.SyntacticDiagnosticsSync;
    arguments: SyntacticDiagnosticsSyncRequestArgs;
}

export interface SyntacticDiagnosticsSyncRequestArgs extends FileRequestArgs {
    includeLinePosition?: boolean;
}

/**
 * Response object for synchronous syntactic diagnostics request.
 */
export interface SyntacticDiagnosticsSyncResponse extends Response {
    body?: Diagnostic[] | DiagnosticWithLinePosition[];
}

/**
 * Arguments for GeterrForProject request.
 */
export interface GeterrForProjectRequestArgs {
    /**
     * the file requesting project error list
     */
    file: string;

    /**
     * Delay in milliseconds to wait before starting to compute
     * errors for the files in the file list
     */
    delay: number;
}

/**
 * GeterrForProjectRequest request; value of command field is
 * "geterrForProject". It works similarly with 'Geterr', only
 * it request for every file in this project.
 */
export interface GeterrForProjectRequest extends Request {
    command: CommandTypes.GeterrForProject;
    arguments: GeterrForProjectRequestArgs;
}

/**
 * Arguments for geterr messages.
 */
export interface GeterrRequestArgs {
    /**
     * List of file names for which to compute compiler errors.
     * The files will be checked in list order.
     */
    files: string[];

    /**
     * Delay in milliseconds to wait before starting to compute
     * errors for the files in the file list
     */
    delay: number;
}

/**
 * Geterr request; value of command field is "geterr". Wait for
 * delay milliseconds and then, if during the wait no change or
 * reload messages have arrived for the first file in the files
 * list, get the syntactic errors for the file, field requests,
 * and then get the semantic errors for the file.  Repeat with a
 * smaller delay for each subsequent file on the files list.  Best
 * practice for an editor is to send a file list containing each
 * file that is currently visible, in most-recently-used order.
 */
export interface GeterrRequest extends Request {
    command: CommandTypes.Geterr;
    arguments: GeterrRequestArgs;
}

export type RequestCompletedEventName = "requestCompleted";

/**
 * Event that is sent when server have finished processing request with specified id.
 */
export interface RequestCompletedEvent extends Event {
    event: RequestCompletedEventName;
    body: RequestCompletedEventBody;
}

export interface RequestCompletedEventBody {
    request_seq: number;
}

/**
 * Item of diagnostic information found in a DiagnosticEvent message.
 */
export interface Diagnostic {
    /**
     * Starting file location at which text applies.
     */
    start: Location;

    /**
     * The last file location at which the text applies.
     */
    end: Location;

    /**
     * Text of diagnostic message.
     */
    text: string;

    /**
     * The category of the diagnostic message, e.g. "error", "warning", or "suggestion".
     */
    category: string;

    reportsUnnecessary?: {};

    reportsDeprecated?: {};

    /**
     * Any related spans the diagnostic may have, such as other locations relevant to an error, such as declarartion sites
     */
    relatedInformation?: DiagnosticRelatedInformation[];

    /**
     * The error code of the diagnostic message.
     */
    code?: number;

    /**
     * The name of the plugin reporting the message.
     */
    source?: string;
}

export interface DiagnosticWithFileName extends Diagnostic {
    /**
     * Name of the file the diagnostic is in
     */
    fileName: string;
}

/**
 * Represents additional spans returned with a diagnostic which are relevant to it
 */
export interface DiagnosticRelatedInformation {
    /**
     * The category of the related information message, e.g. "error", "warning", or "suggestion".
     */
    category: string;
    /**
     * The code used ot identify the related information
     */
    code: number;
    /**
     * Text of related or additional information.
     */
    message: string;
    /**
     * Associated location
     */
    span?: FileSpan;
}

export interface DiagnosticEventBody {
    /**
     * The file for which diagnostic information is reported.
     */
    file: string;

    /**
     * An array of diagnostic information items.
     */
    diagnostics: Diagnostic[];
}

export type DiagnosticEventKind = "semanticDiag" | "syntaxDiag" | "suggestionDiag";

/**
 * Event message for DiagnosticEventKind event types.
 * These events provide syntactic and semantic errors for a file.
 */
export interface DiagnosticEvent extends Event {
    body?: DiagnosticEventBody;
    event: DiagnosticEventKind;
}

export interface ConfigFileDiagnosticEventBody {
    /**
     * The file which trigged the searching and error-checking of the config file
     */
    triggerFile: string;

    /**
     * The name of the found config file.
     */
    configFile: string;

    /**
     * An arry of diagnostic information items for the found config file.
     */
    diagnostics: DiagnosticWithFileName[];
}

/**
 * Event message for "configFileDiag" event type.
 * This event provides errors for a found config file.
 */
export interface ConfigFileDiagnosticEvent extends Event {
    body?: ConfigFileDiagnosticEventBody;
    event: "configFileDiag";
}

export type ProjectLanguageServiceStateEventName = "projectLanguageServiceState";
export interface ProjectLanguageServiceStateEvent extends Event {
    event: ProjectLanguageServiceStateEventName;
    body?: ProjectLanguageServiceStateEventBody;
}

export interface ProjectLanguageServiceStateEventBody {
    /**
     * Project name that has changes in the state of language service.
     * For configured projects this will be the config file path.
     * For external projects this will be the name of the projects specified when project was open.
     * For inferred projects this event is not raised.
     */
    projectName: string;
    /**
     * True if language service state switched from disabled to enabled
     * and false otherwise.
     */
    languageServiceEnabled: boolean;
}

export type ProjectsUpdatedInBackgroundEventName = "projectsUpdatedInBackground";
export interface ProjectsUpdatedInBackgroundEvent extends Event {
    event: ProjectsUpdatedInBackgroundEventName;
    body: ProjectsUpdatedInBackgroundEventBody;
}

export interface ProjectsUpdatedInBackgroundEventBody {
    /**
     * Current set of open files
     */
    openFiles: string[];
}

export type ProjectLoadingStartEventName = "projectLoadingStart";
export interface ProjectLoadingStartEvent extends Event {
    event: ProjectLoadingStartEventName;
    body: ProjectLoadingStartEventBody;
}

export interface ProjectLoadingStartEventBody {
    /** name of the project */
    projectName: string;
    /** reason for loading */
    reason: string;
}

export type ProjectLoadingFinishEventName = "projectLoadingFinish";
export interface ProjectLoadingFinishEvent extends Event {
    event: ProjectLoadingFinishEventName;
    body: ProjectLoadingFinishEventBody;
}

export interface ProjectLoadingFinishEventBody {
    /** name of the project */
    projectName: string;
}

export type SurveyReadyEventName = "surveyReady";

export interface SurveyReadyEvent extends Event {
    event: SurveyReadyEventName;
    body: SurveyReadyEventBody;
}

export interface SurveyReadyEventBody {
    /** Name of the survey. This is an internal machine- and programmer-friendly name */
    surveyId: string;
}

export type LargeFileReferencedEventName = "largeFileReferenced";
export interface LargeFileReferencedEvent extends Event {
    event: LargeFileReferencedEventName;
    body: LargeFileReferencedEventBody;
}

export interface LargeFileReferencedEventBody {
    /**
     * name of the large file being loaded
     */
    file: string;
    /**
     * size of the file
     */
    fileSize: number;
    /**
     * max file size allowed on the server
     */
    maxFileSize: number;
}

/** @internal */
export type AnyEvent =
    RequestCompletedEvent
    | DiagnosticEvent
    | ConfigFileDiagnosticEvent
    | ProjectLanguageServiceStateEvent
    | TelemetryEvent
    | ProjectsUpdatedInBackgroundEvent
    | ProjectLoadingStartEvent
    | ProjectLoadingFinishEvent
    | SurveyReadyEvent
    | LargeFileReferencedEvent;

/**
 * Arguments for reload request.
 */
export interface ReloadRequestArgs extends FileRequestArgs {
    /**
     * Name of temporary file from which to reload file
     * contents. May be same as file.
     */
    tmpfile: string;
}

/**
 * Reload request message; value of command field is "reload".
 * Reload contents of file with name given by the 'file' argument
 * from temporary file with name given by the 'tmpfile' argument.
 * The two names can be identical.
 */
export interface ReloadRequest extends FileRequest {
    command: CommandTypes.Reload;
    arguments: ReloadRequestArgs;
}

/**
 * Response to "reload" request. This is just an acknowledgement, so
 * no body field is required.
 */
export interface ReloadResponse extends Response {
}

/**
 * Arguments for saveto request.
 */
export interface SavetoRequestArgs extends FileRequestArgs {
    /**
     * Name of temporary file into which to save server's view of
     * file contents.
     */
    tmpfile: string;
}

/**
 * Saveto request message; value of command field is "saveto".
 * For debugging purposes, save to a temporaryfile (named by
 * argument 'tmpfile') the contents of file named by argument
 * 'file'.  The server does not currently send a response to a
 * "saveto" request.
 */
export interface SavetoRequest extends FileRequest {
    command: CommandTypes.Saveto;
    arguments: SavetoRequestArgs;
}

/**
 * Arguments for navto request message.
 */
export interface NavtoRequestArgs {
    /**
     * Search term to navigate to from current location; term can
     * be '.*' or an identifier prefix.
     */
    searchValue: string;
    /**
     *  Optional limit on the number of items to return.
     */
    maxResultCount?: number;
    /**
     * The file for the request (absolute pathname required).
     */
    file?: string;
    /**
     * Optional flag to indicate we want results for just the current file
     * or the entire project.
     */
    currentFileOnly?: boolean;

    projectFileName?: string;
}

/**
 * Navto request message; value of command field is "navto".
 * Return list of objects giving file locations and symbols that
 * match the search term given in argument 'searchTerm'.  The
 * context for the search is given by the named file.
 */
export interface NavtoRequest extends Request {
    command: CommandTypes.Navto;
    arguments: NavtoRequestArgs;
}

/**
 * An item found in a navto response.
 */
export interface NavtoItem extends FileSpan {
    /**
     * The symbol's name.
     */
    name: string;

    /**
     * The symbol's kind (such as 'className' or 'parameterName').
     */
    kind: ScriptElementKind;

    /**
     * exact, substring, or prefix.
     */
    matchKind: string;

    /**
     * If this was a case sensitive or insensitive match.
     */
    isCaseSensitive: boolean;

    /**
     * Optional modifiers for the kind (such as 'public').
     */
    kindModifiers?: string;

    /**
     * Name of symbol's container symbol (if any); for example,
     * the class name if symbol is a class member.
     */
    containerName?: string;

    /**
     * Kind of symbol's container symbol (if any).
     */
    containerKind?: ScriptElementKind;
}

/**
 * Navto response message. Body is an array of navto items.  Each
 * item gives a symbol that matched the search term.
 */
export interface NavtoResponse extends Response {
    body?: NavtoItem[];
}

/**
 * Arguments for change request message.
 */
export interface ChangeRequestArgs extends FormatRequestArgs {
    /**
     * Optional string to insert at location (file, line, offset).
     */
    insertString?: string;
}

/**
 * Change request message; value of command field is "change".
 * Update the server's view of the file named by argument 'file'.
 * Server does not currently send a response to a change request.
 */
export interface ChangeRequest extends FileLocationRequest {
    command: CommandTypes.Change;
    arguments: ChangeRequestArgs;
}

/**
 * Response to "brace" request.
 */
export interface BraceResponse extends Response {
    body?: TextSpan[];
}

/**
 * Brace matching request; value of command field is "brace".
 * Return response giving the file locations of matching braces
 * found in file at location line, offset.
 */
export interface BraceRequest extends FileLocationRequest {
    command: CommandTypes.Brace;
}

/**
 * NavBar items request; value of command field is "navbar".
 * Return response giving the list of navigation bar entries
 * extracted from the requested file.
 */
export interface NavBarRequest extends FileRequest {
    command: CommandTypes.NavBar;
}

/**
 * NavTree request; value of command field is "navtree".
 * Return response giving the navigation tree of the requested file.
 */
export interface NavTreeRequest extends FileRequest {
    command: CommandTypes.NavTree;
}

export interface NavigationBarItem {
    /**
     * The item's display text.
     */
    text: string;

    /**
     * The symbol's kind (such as 'className' or 'parameterName').
     */
    kind: ScriptElementKind;

    /**
     * Optional modifiers for the kind (such as 'public').
     */
    kindModifiers?: string;

    /**
     * The definition locations of the item.
     */
    spans: TextSpan[];

    /**
     * Optional children.
     */
    childItems?: NavigationBarItem[];

    /**
     * Number of levels deep this item should appear.
     */
    indent: number;
}

/** protocol.NavigationTree is identical to ts.NavigationTree, except using protocol.TextSpan instead of ts.TextSpan */
export interface NavigationTree {
    text: string;
    kind: ScriptElementKind;
    kindModifiers: string;
    spans: TextSpan[];
    nameSpan: TextSpan | undefined;
    childItems?: NavigationTree[];
}

export type TelemetryEventName = "telemetry";

export interface TelemetryEvent extends Event {
    event: TelemetryEventName;
    body: TelemetryEventBody;
}

export interface TelemetryEventBody {
    telemetryEventName: string;
    payload: any;
}

export type TypesInstallerInitializationFailedEventName = "typesInstallerInitializationFailed";

export interface TypesInstallerInitializationFailedEvent extends Event {
    event: TypesInstallerInitializationFailedEventName;
    body: TypesInstallerInitializationFailedEventBody;
}

export interface TypesInstallerInitializationFailedEventBody {
    message: string;
}

export type TypingsInstalledTelemetryEventName = "typingsInstalled";

export interface TypingsInstalledTelemetryEventBody extends TelemetryEventBody {
    telemetryEventName: TypingsInstalledTelemetryEventName;
    payload: TypingsInstalledTelemetryEventPayload;
}

// A __GDPR__FRAGMENT__ has no meaning until it is ${include}d by a __GDPR__ comment, at which point
// the included properties are effectively inlined into the __GDPR__ declaration.  In this case, for
// example, any __GDPR__ comment including the TypeScriptCommonProperties will be updated with an
// additional version property with the classification below.  Obviously, the purpose of such a construct
// is to reduce duplication and keep multiple use sites consistent (e.g. by making sure that all reflect
// any newly added TypeScriptCommonProperties).  Unfortunately, the system has limits - in particular,
// these reusable __GDPR__FRAGMENT__s are not accessible across repo boundaries.  Therefore, even though
// the code for adding the common properties (i.e. version), along with the corresponding __GDPR__FRAGMENT__,
// lives in the VS Code repo (see https://github.com/microsoft/vscode/blob/main/extensions/typescript-language-features/src/utils/telemetry.ts)
// we have to duplicate it here.  It would be nice to keep them in sync, but the only likely failure mode
// is adding a property to the VS Code repro but not here and the only consequence would be having that
// property suppressed on the events (i.e. __GDPT__ comments) in this repo that reference the out-of-date
// local __GDPR__FRAGMENT__.
/* __GDPR__FRAGMENT__
    "TypeScriptCommonProperties" : {
        "version" : { "classification": "SystemMetaData", "purpose": "FeatureInsight" }
    }
*/

/* __GDPR__
    "typingsinstalled" : {
        "${include}": ["${TypeScriptCommonProperties}"],
        "installedPackages": { "classification": "PublicNonPersonalData", "purpose": "FeatureInsight" },
        "installSuccess": { "classification": "SystemMetaData", "purpose": "FeatureInsight" },
        "typingsInstallerVersion": { "classification": "SystemMetaData", "purpose": "FeatureInsight" }
    }
 */
export interface TypingsInstalledTelemetryEventPayload {
    /**
     * Comma separated list of installed typing packages
     */
    installedPackages: string;
    /**
     * true if install request succeeded, otherwise - false
     */
    installSuccess: boolean;

    /**
     * version of typings installer
     */
    typingsInstallerVersion: string;
}

export type BeginInstallTypesEventName = "beginInstallTypes";
export type EndInstallTypesEventName = "endInstallTypes";

export interface BeginInstallTypesEvent extends Event {
    event: BeginInstallTypesEventName;
    body: BeginInstallTypesEventBody;
}

export interface EndInstallTypesEvent extends Event {
    event: EndInstallTypesEventName;
    body: EndInstallTypesEventBody;
}

export interface InstallTypesEventBody {
    /**
     * correlation id to match begin and end events
     */
    eventId: number;
    /**
     * list of packages to install
     */
    packages: readonly string[];
}

export interface BeginInstallTypesEventBody extends InstallTypesEventBody {
}

export interface EndInstallTypesEventBody extends InstallTypesEventBody {
    /**
     * true if installation succeeded, otherwise false
     */
    success: boolean;
}

export interface NavBarResponse extends Response {
    body?: NavigationBarItem[];
}

export interface NavTreeResponse extends Response {
    body?: NavigationTree;
}

export interface CallHierarchyItem {
    name: string;
    kind: ScriptElementKind;
    kindModifiers?: string
    file: string;
    span: TextSpan;
    selectionSpan: TextSpan;
    containerName?: string;
}

export interface CallHierarchyIncomingCall {
    from: CallHierarchyItem;
    fromSpans: TextSpan[];
}

export interface CallHierarchyOutgoingCall {
    to: CallHierarchyItem;
    fromSpans: TextSpan[];
}

export interface PrepareCallHierarchyRequest extends FileLocationRequest {
    command: CommandTypes.PrepareCallHierarchy;
}

export interface PrepareCallHierarchyResponse extends Response {
    readonly body: CallHierarchyItem | CallHierarchyItem[];
}

export interface ProvideCallHierarchyIncomingCallsRequest extends FileLocationRequest {
    command: CommandTypes.ProvideCallHierarchyIncomingCalls;
}

export interface ProvideCallHierarchyIncomingCallsResponse extends Response {
    readonly body: CallHierarchyIncomingCall[];
}

export interface ProvideCallHierarchyOutgoingCallsRequest extends FileLocationRequest {
    command: CommandTypes.ProvideCallHierarchyOutgoingCalls;
}

export interface ProvideCallHierarchyOutgoingCallsResponse extends Response {
    readonly body: CallHierarchyOutgoingCall[];
}

export const enum IndentStyle {
    None = "None",
    Block = "Block",
    Smart = "Smart",
}

export enum SemicolonPreference {
    Ignore = "ignore",
    Insert = "insert",
    Remove = "remove",
}

export interface EditorSettings {
    baseIndentSize?: number;
    indentSize?: number;
    tabSize?: number;
    newLineCharacter?: string;
    convertTabsToSpaces?: boolean;
    indentStyle?: IndentStyle | ts.IndentStyle;
    trimTrailingWhitespace?: boolean;
}

export interface FormatCodeSettings extends EditorSettings {
    insertSpaceAfterCommaDelimiter?: boolean;
    insertSpaceAfterSemicolonInForStatements?: boolean;
    insertSpaceBeforeAndAfterBinaryOperators?: boolean;
    insertSpaceAfterConstructor?: boolean;
    insertSpaceAfterKeywordsInControlFlowStatements?: boolean;
    insertSpaceAfterFunctionKeywordForAnonymousFunctions?: boolean;
    insertSpaceAfterOpeningAndBeforeClosingEmptyBraces?: boolean;
    insertSpaceAfterOpeningAndBeforeClosingNonemptyParenthesis?: boolean;
    insertSpaceAfterOpeningAndBeforeClosingNonemptyBrackets?: boolean;
    insertSpaceAfterOpeningAndBeforeClosingNonemptyBraces?: boolean;
    insertSpaceAfterOpeningAndBeforeClosingTemplateStringBraces?: boolean;
    insertSpaceAfterOpeningAndBeforeClosingJsxExpressionBraces?: boolean;
    insertSpaceAfterTypeAssertion?: boolean;
    insertSpaceBeforeFunctionParenthesis?: boolean;
    placeOpenBraceOnNewLineForFunctions?: boolean;
    placeOpenBraceOnNewLineForControlBlocks?: boolean;
    insertSpaceBeforeTypeAnnotation?: boolean;
    semicolons?: SemicolonPreference;
}

export interface UserPreferences {
    readonly disableSuggestions?: boolean;
    readonly quotePreference?: "auto" | "double" | "single";
    /**
     * If enabled, TypeScript will search through all external modules' exports and add them to the completions list.
     * This affects lone identifier completions but not completions on the right hand side of `obj.`.
     */
    readonly includeCompletionsForModuleExports?: boolean;
    /**
     * Enables auto-import-style completions on partially-typed import statements. E.g., allows
     * `import write|` to be completed to `import { writeFile } from "fs"`.
     */
    readonly includeCompletionsForImportStatements?: boolean;
    /**
     * Allows completions to be formatted with snippet text, indicated by `CompletionItem["isSnippet"]`.
     */
    readonly includeCompletionsWithSnippetText?: boolean;
    /**
     * If enabled, the completion list will include completions with invalid identifier names.
     * For those entries, The `insertText` and `replacementSpan` properties will be set to change from `.x` property access to `["x"]`.
     */
    readonly includeCompletionsWithInsertText?: boolean;
    /**
     * Unless this option is `false`, or `includeCompletionsWithInsertText` is not enabled,
     * member completion lists triggered with `.` will include entries on potentially-null and potentially-undefined
     * values, with insertion text to replace preceding `.` tokens with `?.`.
     */
    readonly includeAutomaticOptionalChainCompletions?: boolean;
    /**
     * If enabled, completions for class members (e.g. methods and properties) will include
     * a whole declaration for the member.
     * E.g., `class A { f| }` could be completed to `class A { foo(): number {} }`, instead of
     * `class A { foo }`.
     */
    readonly includeCompletionsWithClassMemberSnippets?: boolean;
    /**
     * If enabled, object literal methods will have a method declaration completion entry in addition
     * to the regular completion entry containing just the method name.
     * E.g., `const objectLiteral: T = { f| }` could be completed to `const objectLiteral: T = { foo(): void {} }`,
     * in addition to `const objectLiteral: T = { foo }`.
     */
    readonly includeCompletionsWithObjectLiteralMethodSnippets?: boolean;
    /**
     * Indicates whether {@link CompletionEntry.labelDetails completion entry label details} are supported.
     * If not, contents of `labelDetails` may be included in the {@link CompletionEntry.name} property.
     */
    readonly useLabelDetailsInCompletionEntries?: boolean;
    readonly allowIncompleteCompletions?: boolean;
    readonly importModuleSpecifierPreference?: "shortest" | "project-relative" | "relative" | "non-relative";
    /** Determines whether we import `foo/index.ts` as "foo", "foo/index", or "foo/index.js" */
    readonly importModuleSpecifierEnding?: "auto" | "minimal" | "index" | "js";
    readonly allowTextChangesInNewFiles?: boolean;
    readonly lazyConfiguredProjectsFromExternalProject?: boolean;
    readonly providePrefixAndSuffixTextForRename?: boolean;
    readonly provideRefactorNotApplicableReason?: boolean;
    readonly allowRenameOfImportPath?: boolean;
    readonly includePackageJsonAutoImports?: "auto" | "on" | "off";
    readonly jsxAttributeCompletionStyle?: "auto" | "braces" | "none";

    readonly displayPartsForJSDoc?: boolean;
    readonly generateReturnInDocTemplate?: boolean;

    readonly includeInlayParameterNameHints?: "none" | "literals" | "all";
    readonly includeInlayParameterNameHintsWhenArgumentMatchesName?: boolean;
    readonly includeInlayFunctionParameterTypeHints?: boolean,
    readonly includeInlayVariableTypeHints?: boolean;
    readonly includeInlayVariableTypeHintsWhenTypeMatchesName?: boolean;
    readonly includeInlayPropertyDeclarationTypeHints?: boolean;
    readonly includeInlayFunctionLikeReturnTypeHints?: boolean;
    readonly includeInlayEnumMemberValueHints?: boolean;
    readonly autoImportFileExcludePatterns?: string[];

    /**
     * Indicates whether {@link ReferencesResponseItem.lineText} is supported.
     */
    readonly disableLineTextInReferences?: boolean;
}

export interface CompilerOptions {
    allowJs?: boolean;
    allowSyntheticDefaultImports?: boolean;
    allowUnreachableCode?: boolean;
    allowUnusedLabels?: boolean;
    alwaysStrict?: boolean;
    baseUrl?: string;
    charset?: string;
    checkJs?: boolean;
    declaration?: boolean;
    declarationDir?: string;
    disableSizeLimit?: boolean;
    downlevelIteration?: boolean;
    emitBOM?: boolean;
    emitDecoratorMetadata?: boolean;
    experimentalDecorators?: boolean;
    forceConsistentCasingInFileNames?: boolean;
    importHelpers?: boolean;
    inlineSourceMap?: boolean;
    inlineSources?: boolean;
    isolatedModules?: boolean;
    jsx?: JsxEmit | ts.JsxEmit;
    lib?: string[];
    locale?: string;
    mapRoot?: string;
    maxNodeModuleJsDepth?: number;
    module?: ModuleKind | ts.ModuleKind;
    moduleResolution?: ModuleResolutionKind | ts.ModuleResolutionKind;
    newLine?: NewLineKind | ts.NewLineKind;
    noEmit?: boolean;
    noEmitHelpers?: boolean;
    noEmitOnError?: boolean;
    noErrorTruncation?: boolean;
    noFallthroughCasesInSwitch?: boolean;
    noImplicitAny?: boolean;
    noImplicitReturns?: boolean;
    noImplicitThis?: boolean;
    noUnusedLocals?: boolean;
    noUnusedParameters?: boolean;
    noImplicitUseStrict?: boolean;
    noLib?: boolean;
    noResolve?: boolean;
    out?: string;
    outDir?: string;
    outFile?: string;
    paths?: MapLike<string[]>;
    plugins?: PluginImport[];
    preserveConstEnums?: boolean;
    preserveSymlinks?: boolean;
    project?: string;
    reactNamespace?: string;
    removeComments?: boolean;
    references?: ProjectReference[];
    rootDir?: string;
    rootDirs?: string[];
    skipLibCheck?: boolean;
    skipDefaultLibCheck?: boolean;
    sourceMap?: boolean;
    sourceRoot?: string;
    strict?: boolean;
    strictNullChecks?: boolean;
    suppressExcessPropertyErrors?: boolean;
    suppressImplicitAnyIndexErrors?: boolean;
    useDefineForClassFields?: boolean;
    target?: ScriptTarget | ts.ScriptTarget;
    traceResolution?: boolean;
    resolveJsonModule?: boolean;
    types?: string[];
    /** Paths used to used to compute primary types search locations */
    typeRoots?: string[];
    ets?: EtsOptions;
    packageManagerType?: string;
    emitNodeModulesFiles?: boolean;
    [option: string]: CompilerOptionsValue | undefined;
}

export const enum JsxEmit {
    None = "None",
    Preserve = "Preserve",
    ReactNative = "ReactNative",
    React = "React",
}

export const enum ModuleKind {
    None = "None",
    CommonJS = "CommonJS",
    AMD = "AMD",
    UMD = "UMD",
    System = "System",
    ES6 = "ES6",
    ES2015 = "ES2015",
    ESNext = "ESNext"
}

export const enum ModuleResolutionKind {
    Classic = "Classic",
    Node = "Node",
}

export const enum NewLineKind {
    Crlf = "Crlf",
    Lf = "Lf",
}

export const enum ScriptTarget {
    ES3 = "ES3",
    ES5 = "ES5",
    ES6 = "ES6",
    ES2015 = "ES2015",
    ES2016 = "ES2016",
    ES2017 = "ES2017",
    ES2018 = "ES2018",
    ES2019 = "ES2019",
    ES2020 = "ES2020",
    ES2021 = "ES2021",
    ES2022 = "ES2022",
    ESNext = "ESNext"
}

export const enum ClassificationType {
    comment = 1,
    identifier = 2,
    keyword = 3,
    numericLiteral = 4,
    operator = 5,
    stringLiteral = 6,
    regularExpressionLiteral = 7,
    whiteSpace = 8,
    text = 9,
    punctuation = 10,
    className = 11,
    enumName = 12,
    interfaceName = 13,
    moduleName = 14,
    typeParameterName = 15,
    typeAliasName = 16,
    parameterName = 17,
    docCommentTagName = 18,
    jsxOpenTagName = 19,
    jsxCloseTagName = 20,
    jsxSelfClosingTagName = 21,
    jsxAttribute = 22,
    jsxText = 23,
    jsxAttributeStringLiteralValue = 24,
    bigintLiteral = 25,
}