Update LKG

lib/lib.d.ts

@@ -200,7 +200,7 @@ interface ObjectConstructor {
       * Prevents the modification of existing property attributes and values, and prevents the addition of new properties.
       * @param o Object on which to lock the attributes.
       */
-    freeze<T>(o: T): T;
+    freeze<T>(o: T): Readonly<T>;
 
     /**
       * Prevents the addition of new properties to an object.
@@ -1363,6 +1363,34 @@ interface ArrayLike<T> {
     readonly [n: number]: T;
 }
 
+/**
+ * Make all properties in T optional
+ */
+type Partial<T> = {
+    [P in keyof T]?: T[P];
+};
+
+/**
+ * Make all properties in T readonly
+ */
+type Readonly<T> = {
+    readonly [P in keyof T]: T[P];
+};
+
+/**
+ * From T pick a set of properties K
+ */
+type Pick<T, K extends keyof T> = {
+    [P in K]: T[P];
+}
+
+/**
+ * Construct a type with a set of properties K of type T
+ */
+type Record<K extends string | number, T> = {
+    [P in K]: T;
+}
+
 /**
   * Represents a raw buffer of binary data, which is used to store data for the
   * different typed arrays. ArrayBuffers cannot be read from or written to directly,

lib/lib.es2015.core.d.ts

@@ -225,13 +225,13 @@ interface NumberConstructor {
       * number. Only finite values of the type number, result in true.
       * @param number A numeric value.
       */
-    isFinite(value: any): value is number;
+    isFinite(number: number): boolean;
 
     /**
       * Returns true if the value passed is an integer, false otherwise.
       * @param number A numeric value.
       */
-    isInteger(value: any): value is number;
+    isInteger(number: number): boolean;
 
     /**
       * Returns a Boolean value that indicates whether a value is the reserved value NaN (not a
@@ -239,13 +239,13 @@ interface NumberConstructor {
       * to a number. Only values of the type number, that are also NaN, result in true.
       * @param number A numeric value.
       */
-    isNaN(value: any): value is number;
+    isNaN(number: number): boolean;
 
     /**
       * Returns true if the value passed is a safe integer.
       * @param number A numeric value.
       */
-    isSafeInteger(value: any): value is number;
+    isSafeInteger(number: number): boolean;
 
     /**
       * The value of the largest integer n such that n and n + 1 are both exactly representable as

lib/lib.es5.d.ts

@@ -200,7 +200,7 @@ interface ObjectConstructor {
       * Prevents the modification of existing property attributes and values, and prevents the addition of new properties.
       * @param o Object on which to lock the attributes.
       */
-    freeze<T>(o: T): T;
+    freeze<T>(o: T): Readonly<T>;
 
     /**
       * Prevents the addition of new properties to an object.
@@ -1363,6 +1363,34 @@ interface ArrayLike<T> {
     readonly [n: number]: T;
 }
 
+/**
+ * Make all properties in T optional
+ */
+type Partial<T> = {
+    [P in keyof T]?: T[P];
+};
+
+/**
+ * Make all properties in T readonly
+ */
+type Readonly<T> = {
+    readonly [P in keyof T]: T[P];
+};
+
+/**
+ * From T pick a set of properties K
+ */
+type Pick<T, K extends keyof T> = {
+    [P in K]: T[P];
+}
+
+/**
+ * Construct a type with a set of properties K of type T
+ */
+type Record<K extends string | number, T> = {
+    [P in K]: T;
+}
+
 /**
   * Represents a raw buffer of binary data, which is used to store data for the
   * different typed arrays. ArrayBuffers cannot be read from or written to directly,

lib/lib.es6.d.ts

@@ -200,7 +200,7 @@ interface ObjectConstructor {
       * Prevents the modification of existing property attributes and values, and prevents the addition of new properties.
       * @param o Object on which to lock the attributes.
       */
-    freeze<T>(o: T): T;
+    freeze<T>(o: T): Readonly<T>;
 
     /**
       * Prevents the addition of new properties to an object.
@@ -1363,6 +1363,34 @@ interface ArrayLike<T> {
     readonly [n: number]: T;
 }
 
+/**
+ * Make all properties in T optional
+ */
+type Partial<T> = {
+    [P in keyof T]?: T[P];
+};
+
+/**
+ * Make all properties in T readonly
+ */
+type Readonly<T> = {
+    readonly [P in keyof T]: T[P];
+};
+
+/**
+ * From T pick a set of properties K
+ */
+type Pick<T, K extends keyof T> = {
+    [P in K]: T[P];
+}
+
+/**
+ * Construct a type with a set of properties K of type T
+ */
+type Record<K extends string | number, T> = {
+    [P in K]: T;
+}
+
 /**
   * Represents a raw buffer of binary data, which is used to store data for the
   * different typed arrays. ArrayBuffers cannot be read from or written to directly,
@@ -4362,13 +4390,13 @@ interface NumberConstructor {
       * number. Only finite values of the type number, result in true.
       * @param number A numeric value.
       */
-    isFinite(value: any): value is number;
+    isFinite(number: number): boolean;
 
     /**
       * Returns true if the value passed is an integer, false otherwise.
       * @param number A numeric value.
       */
-    isInteger(value: any): value is number;
+    isInteger(number: number): boolean;
 
     /**
       * Returns a Boolean value that indicates whether a value is the reserved value NaN (not a
@@ -4376,13 +4404,13 @@ interface NumberConstructor {
       * to a number. Only values of the type number, that are also NaN, result in true.
       * @param number A numeric value.
       */
-    isNaN(value: any): value is number;
+    isNaN(number: number): boolean;
 
     /**
       * Returns true if the value passed is a safe integer.
       * @param number A numeric value.
       */
-    isSafeInteger(value: any): value is number;
+    isSafeInteger(number: number): boolean;
 
     /**
       * The value of the largest integer n such that n and n + 1 are both exactly representable as

lib/protocol.d.ts

@@ -1400,6 +1400,25 @@ declare namespace ts.server.protocol {
         body?: ConfigFileDiagnosticEventBody;
         event: "configFileDiag";
     }
+    type ProjectLanguageServiceStateEventName = "projectLanguageServiceState";
+    interface ProjectLanguageServiceStateEvent extends Event {
+        event: ProjectLanguageServiceStateEventName;
+        body?: ProjectLanguageServiceStateEventBody;
+    }
+    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;
+    }
     /**
       * Arguments for reload request.
       */
@@ -1634,6 +1653,10 @@ declare namespace ts.server.protocol {
          * true if install request succeeded, otherwise - false
          */
         installSuccess: boolean;
+        /**
+         * version of typings installer
+         */
+        typingsInstallerVersion: string;
     }
     interface NavBarResponse extends Response {
         body?: NavigationBarItem[];

lib/typescript.d.ts

@@ -333,7 +333,8 @@ declare namespace ts {
         PartiallyEmittedExpression = 293,
         MergeDeclarationMarker = 294,
         EndOfDeclarationMarker = 295,
-        Count = 296,
+        RawExpression = 296,
+        Count = 297,
         FirstAssignment = 57,
         LastAssignment = 69,
         FirstCompoundAssignment = 58,
@@ -464,14 +465,14 @@ declare namespace ts {
         right: Identifier;
     }
     type EntityName = Identifier | QualifiedName;
-    type PropertyName = Identifier | LiteralExpression | ComputedPropertyName;
-    type DeclarationName = Identifier | LiteralExpression | ComputedPropertyName | BindingPattern;
+    type PropertyName = Identifier | StringLiteral | NumericLiteral | ComputedPropertyName;
+    type DeclarationName = Identifier | StringLiteral | NumericLiteral | ComputedPropertyName | BindingPattern;
     interface Declaration extends Node {
         _declarationBrand: any;
         name?: DeclarationName;
     }
     interface DeclarationStatement extends Declaration, Statement {
-        name?: Identifier | LiteralExpression;
+        name?: Identifier | StringLiteral | NumericLiteral;
     }
     interface ComputedPropertyName extends Node {
         kind: SyntaxKind.ComputedPropertyName;
@@ -573,18 +574,16 @@ declare namespace ts {
     interface PropertyLikeDeclaration extends Declaration {
         name: PropertyName;
     }
-    interface BindingPattern extends Node {
-        elements: NodeArray<BindingElement | ArrayBindingElement>;
-    }
-    interface ObjectBindingPattern extends BindingPattern {
+    interface ObjectBindingPattern extends Node {
         kind: SyntaxKind.ObjectBindingPattern;
         elements: NodeArray<BindingElement>;
     }
-    type ArrayBindingElement = BindingElement | OmittedExpression;
-    interface ArrayBindingPattern extends BindingPattern {
+    interface ArrayBindingPattern extends Node {
         kind: SyntaxKind.ArrayBindingPattern;
         elements: NodeArray<ArrayBindingElement>;
     }
+    type BindingPattern = ObjectBindingPattern | ArrayBindingPattern;
+    type ArrayBindingElement = BindingElement | OmittedExpression;
     /**
      * Several node kinds share function-like features such as a signature,
      * a name, and a body. These nodes should extend FunctionLikeDeclaration.
@@ -809,17 +808,25 @@ declare namespace ts {
         operatorToken: BinaryOperatorToken;
         right: Expression;
     }
-    interface AssignmentExpression extends BinaryExpression {
+    type AssignmentOperatorToken = Token<AssignmentOperator>;
+    interface AssignmentExpression<TOperator extends AssignmentOperatorToken> extends BinaryExpression {
         left: LeftHandSideExpression;
-        operatorToken: Token<SyntaxKind.EqualsToken>;
+        operatorToken: TOperator;
     }
-    interface ObjectDestructuringAssignment extends AssignmentExpression {
+    interface ObjectDestructuringAssignment extends AssignmentExpression<EqualsToken> {
         left: ObjectLiteralExpression;
     }
-    interface ArrayDestructuringAssignment extends AssignmentExpression {
+    interface ArrayDestructuringAssignment extends AssignmentExpression<EqualsToken> {
         left: ArrayLiteralExpression;
     }
     type DestructuringAssignment = ObjectDestructuringAssignment | ArrayDestructuringAssignment;
+    type BindingOrAssignmentElement = VariableDeclaration | ParameterDeclaration | BindingElement | PropertyAssignment | ShorthandPropertyAssignment | SpreadAssignment | OmittedExpression | SpreadElement | ArrayLiteralExpression | ObjectLiteralExpression | AssignmentExpression<EqualsToken> | Identifier | PropertyAccessExpression | ElementAccessExpression;
+    type BindingOrAssignmentElementRestIndicator = DotDotDotToken | SpreadElement | SpreadAssignment;
+    type BindingOrAssignmentElementTarget = BindingOrAssignmentPattern | Expression;
+    type ObjectBindingOrAssignmentPattern = ObjectBindingPattern | ObjectLiteralExpression;
+    type ArrayBindingOrAssignmentPattern = ArrayBindingPattern | ArrayLiteralExpression;
+    type AssignmentPattern = ObjectLiteralExpression | ArrayLiteralExpression;
+    type BindingOrAssignmentPattern = ObjectBindingOrAssignmentPattern | ArrayBindingOrAssignmentPattern;
     interface ConditionalExpression extends Expression {
         kind: SyntaxKind.ConditionalExpression;
         condition: Expression;
@@ -1180,7 +1187,7 @@ declare namespace ts {
     type ModuleName = Identifier | StringLiteral;
     interface ModuleDeclaration extends DeclarationStatement {
         kind: SyntaxKind.ModuleDeclaration;
-        name: Identifier | LiteralExpression;
+        name: Identifier | StringLiteral;
         body?: ModuleBlock | NamespaceDeclaration | JSDocNamespaceDeclaration | Identifier;
     }
     interface NamespaceDeclaration extends ModuleDeclaration {
@@ -1332,7 +1339,7 @@ declare namespace ts {
     type JSDocTypeReferencingNode = JSDocThisType | JSDocConstructorType | JSDocVariadicType | JSDocOptionalType | JSDocNullableType | JSDocNonNullableType;
     interface JSDocRecordMember extends PropertySignature {
         kind: SyntaxKind.JSDocRecordMember;
-        name: Identifier | LiteralExpression;
+        name: Identifier | StringLiteral | NumericLiteral;
         type?: JSDocType;
     }
     interface JSDoc extends Node {
@@ -1596,6 +1603,7 @@ declare namespace ts {
         getJsxIntrinsicTagNames(): Symbol[];
         isOptionalParameter(node: ParameterDeclaration): boolean;
         getAmbientModules(): Symbol[];
+        tryGetMemberInModuleExports(memberName: string, moduleSymbol: Symbol): Symbol | undefined;
     }
     interface SymbolDisplayBuilder {
         buildTypeDisplay(type: Type, writer: SymbolWriter, enclosingDeclaration?: Node, flags?: TypeFormatFlags): void;
@@ -1962,7 +1970,7 @@ declare namespace ts {
         target?: ScriptTarget;
         traceResolution?: boolean;
         types?: string[];
-        /** Paths used to used to compute primary types search locations */
+        /** Paths used to compute primary types search locations */
         typeRoots?: string[];
         [option: string]: CompilerOptionsValue | undefined;
     }
@@ -2129,6 +2137,10 @@ declare namespace ts {
         _children: Node[];
     }
 }
+declare namespace ts {
+    /** The version of the TypeScript compiler release */
+    const version = "2.1.3";
+}
 declare namespace ts {
     type FileWatcherCallback = (fileName: string, removed?: boolean) => void;
     type DirectoryWatcherCallback = (fileName: string) => void;
@@ -2260,7 +2272,7 @@ declare namespace ts {
      */
     function collapseTextChangeRangesAcrossMultipleVersions(changes: TextChangeRange[]): TextChangeRange;
     function getTypeParameterOwner(d: Declaration): Declaration;
-    function isParameterPropertyDeclaration(node: ParameterDeclaration): boolean;
+    function isParameterPropertyDeclaration(node: Node): boolean;
     function getCombinedModifierFlags(node: Node): ModifierFlags;
     function getCombinedNodeFlags(node: Node): NodeFlags;
 }
@@ -2273,6 +2285,7 @@ declare namespace ts {
     function updateSourceFile(sourceFile: SourceFile, newText: string, textChangeRange: TextChangeRange, aggressiveChecks?: boolean): SourceFile;
 }
 declare namespace ts {
+    function moduleHasNonRelativeName(moduleName: string): boolean;
     function getEffectiveTypeRoots(options: CompilerOptions, host: {
         directoryExists?: (directoryName: string) => boolean;
         getCurrentDirectory?: () => string;
@@ -2297,8 +2310,6 @@ declare namespace ts {
     function classicNameResolver(moduleName: string, containingFile: string, compilerOptions: CompilerOptions, host: ModuleResolutionHost): ResolvedModuleWithFailedLookupLocations;
 }
 declare namespace ts {
-    /** The version of the TypeScript compiler release */
-    const version = "2.2.0";
     function findConfigFile(searchPath: string, fileExists: (fileName: string) => boolean, configName?: string): string;
     function resolveTripleslashReference(moduleName: string, containingFile: string): string;
     function createCompilerHost(options: CompilerOptions, setParentNodes?: boolean): CompilerHost;
@@ -2393,6 +2404,7 @@ declare namespace ts {
     }
     interface SourceFile {
         getLineAndCharacterOfPosition(pos: number): LineAndCharacter;
+        getLineEndOfPosition(pos: number): number;
         getLineStarts(): number[];
         getPositionOfLineAndCharacter(line: number, character: number): number;
         update(newText: string, textChangeRange: TextChangeRange): SourceFile;

lib/typescriptServices.d.ts

@@ -333,7 +333,8 @@ declare namespace ts {
         PartiallyEmittedExpression = 293,
         MergeDeclarationMarker = 294,
         EndOfDeclarationMarker = 295,
-        Count = 296,
+        RawExpression = 296,
+        Count = 297,
         FirstAssignment = 57,
         LastAssignment = 69,
         FirstCompoundAssignment = 58,
@@ -464,14 +465,14 @@ declare namespace ts {
         right: Identifier;
     }
     type EntityName = Identifier | QualifiedName;
-    type PropertyName = Identifier | LiteralExpression | ComputedPropertyName;
-    type DeclarationName = Identifier | LiteralExpression | ComputedPropertyName | BindingPattern;
+    type PropertyName = Identifier | StringLiteral | NumericLiteral | ComputedPropertyName;
+    type DeclarationName = Identifier | StringLiteral | NumericLiteral | ComputedPropertyName | BindingPattern;
     interface Declaration extends Node {
         _declarationBrand: any;
         name?: DeclarationName;
     }
     interface DeclarationStatement extends Declaration, Statement {
-        name?: Identifier | LiteralExpression;
+        name?: Identifier | StringLiteral | NumericLiteral;
     }
     interface ComputedPropertyName extends Node {
         kind: SyntaxKind.ComputedPropertyName;
@@ -573,18 +574,16 @@ declare namespace ts {
     interface PropertyLikeDeclaration extends Declaration {
         name: PropertyName;
     }
-    interface BindingPattern extends Node {
-        elements: NodeArray<BindingElement | ArrayBindingElement>;
-    }
-    interface ObjectBindingPattern extends BindingPattern {
+    interface ObjectBindingPattern extends Node {
         kind: SyntaxKind.ObjectBindingPattern;
         elements: NodeArray<BindingElement>;
     }
-    type ArrayBindingElement = BindingElement | OmittedExpression;
-    interface ArrayBindingPattern extends BindingPattern {
+    interface ArrayBindingPattern extends Node {
         kind: SyntaxKind.ArrayBindingPattern;
         elements: NodeArray<ArrayBindingElement>;
     }
+    type BindingPattern = ObjectBindingPattern | ArrayBindingPattern;
+    type ArrayBindingElement = BindingElement | OmittedExpression;
     /**
      * Several node kinds share function-like features such as a signature,
      * a name, and a body. These nodes should extend FunctionLikeDeclaration.
@@ -809,17 +808,25 @@ declare namespace ts {
         operatorToken: BinaryOperatorToken;
         right: Expression;
     }
-    interface AssignmentExpression extends BinaryExpression {
+    type AssignmentOperatorToken = Token<AssignmentOperator>;
+    interface AssignmentExpression<TOperator extends AssignmentOperatorToken> extends BinaryExpression {
         left: LeftHandSideExpression;
-        operatorToken: Token<SyntaxKind.EqualsToken>;
+        operatorToken: TOperator;
     }
-    interface ObjectDestructuringAssignment extends AssignmentExpression {
+    interface ObjectDestructuringAssignment extends AssignmentExpression<EqualsToken> {
         left: ObjectLiteralExpression;
     }
-    interface ArrayDestructuringAssignment extends AssignmentExpression {
+    interface ArrayDestructuringAssignment extends AssignmentExpression<EqualsToken> {
         left: ArrayLiteralExpression;
     }
     type DestructuringAssignment = ObjectDestructuringAssignment | ArrayDestructuringAssignment;
+    type BindingOrAssignmentElement = VariableDeclaration | ParameterDeclaration | BindingElement | PropertyAssignment | ShorthandPropertyAssignment | SpreadAssignment | OmittedExpression | SpreadElement | ArrayLiteralExpression | ObjectLiteralExpression | AssignmentExpression<EqualsToken> | Identifier | PropertyAccessExpression | ElementAccessExpression;
+    type BindingOrAssignmentElementRestIndicator = DotDotDotToken | SpreadElement | SpreadAssignment;
+    type BindingOrAssignmentElementTarget = BindingOrAssignmentPattern | Expression;
+    type ObjectBindingOrAssignmentPattern = ObjectBindingPattern | ObjectLiteralExpression;
+    type ArrayBindingOrAssignmentPattern = ArrayBindingPattern | ArrayLiteralExpression;
+    type AssignmentPattern = ObjectLiteralExpression | ArrayLiteralExpression;
+    type BindingOrAssignmentPattern = ObjectBindingOrAssignmentPattern | ArrayBindingOrAssignmentPattern;
     interface ConditionalExpression extends Expression {
         kind: SyntaxKind.ConditionalExpression;
         condition: Expression;
@@ -1180,7 +1187,7 @@ declare namespace ts {
     type ModuleName = Identifier | StringLiteral;
     interface ModuleDeclaration extends DeclarationStatement {
         kind: SyntaxKind.ModuleDeclaration;
-        name: Identifier | LiteralExpression;
+        name: Identifier | StringLiteral;
         body?: ModuleBlock | NamespaceDeclaration | JSDocNamespaceDeclaration | Identifier;
     }
     interface NamespaceDeclaration extends ModuleDeclaration {
@@ -1332,7 +1339,7 @@ declare namespace ts {
     type JSDocTypeReferencingNode = JSDocThisType | JSDocConstructorType | JSDocVariadicType | JSDocOptionalType | JSDocNullableType | JSDocNonNullableType;
     interface JSDocRecordMember extends PropertySignature {
         kind: SyntaxKind.JSDocRecordMember;
-        name: Identifier | LiteralExpression;
+        name: Identifier | StringLiteral | NumericLiteral;
         type?: JSDocType;
     }
     interface JSDoc extends Node {
@@ -1596,6 +1603,7 @@ declare namespace ts {
         getJsxIntrinsicTagNames(): Symbol[];
         isOptionalParameter(node: ParameterDeclaration): boolean;
         getAmbientModules(): Symbol[];
+        tryGetMemberInModuleExports(memberName: string, moduleSymbol: Symbol): Symbol | undefined;
     }
     interface SymbolDisplayBuilder {
         buildTypeDisplay(type: Type, writer: SymbolWriter, enclosingDeclaration?: Node, flags?: TypeFormatFlags): void;
@@ -1962,7 +1970,7 @@ declare namespace ts {
         target?: ScriptTarget;
         traceResolution?: boolean;
         types?: string[];
-        /** Paths used to used to compute primary types search locations */
+        /** Paths used to compute primary types search locations */
         typeRoots?: string[];
         [option: string]: CompilerOptionsValue | undefined;
     }
@@ -2129,6 +2137,10 @@ declare namespace ts {
         _children: Node[];
     }
 }
+declare namespace ts {
+    /** The version of the TypeScript compiler release */
+    const version = "2.1.3";
+}
 declare namespace ts {
     type FileWatcherCallback = (fileName: string, removed?: boolean) => void;
     type DirectoryWatcherCallback = (fileName: string) => void;
@@ -2260,7 +2272,7 @@ declare namespace ts {
      */
     function collapseTextChangeRangesAcrossMultipleVersions(changes: TextChangeRange[]): TextChangeRange;
     function getTypeParameterOwner(d: Declaration): Declaration;
-    function isParameterPropertyDeclaration(node: ParameterDeclaration): boolean;
+    function isParameterPropertyDeclaration(node: Node): boolean;
     function getCombinedModifierFlags(node: Node): ModifierFlags;
     function getCombinedNodeFlags(node: Node): NodeFlags;
 }
@@ -2273,6 +2285,7 @@ declare namespace ts {
     function updateSourceFile(sourceFile: SourceFile, newText: string, textChangeRange: TextChangeRange, aggressiveChecks?: boolean): SourceFile;
 }
 declare namespace ts {
+    function moduleHasNonRelativeName(moduleName: string): boolean;
     function getEffectiveTypeRoots(options: CompilerOptions, host: {
         directoryExists?: (directoryName: string) => boolean;
         getCurrentDirectory?: () => string;
@@ -2297,8 +2310,6 @@ declare namespace ts {
     function classicNameResolver(moduleName: string, containingFile: string, compilerOptions: CompilerOptions, host: ModuleResolutionHost): ResolvedModuleWithFailedLookupLocations;
 }
 declare namespace ts {
-    /** The version of the TypeScript compiler release */
-    const version = "2.2.0";
     function findConfigFile(searchPath: string, fileExists: (fileName: string) => boolean, configName?: string): string;
     function resolveTripleslashReference(moduleName: string, containingFile: string): string;
     function createCompilerHost(options: CompilerOptions, setParentNodes?: boolean): CompilerHost;
@@ -2393,6 +2404,7 @@ declare namespace ts {
     }
     interface SourceFile {
         getLineAndCharacterOfPosition(pos: number): LineAndCharacter;
+        getLineEndOfPosition(pos: number): number;
         getLineStarts(): number[];
         getPositionOfLineAndCharacter(line: number, character: number): number;
         update(newText: string, textChangeRange: TextChangeRange): SourceFile;

lib/typingsInstaller.js

@@ -136,6 +136,9 @@ var ts;
     })(performance = ts.performance || (ts.performance = {}));
 })(ts || (ts = {}));
 var ts;
+(function (ts) {
+    ts.version = "2.1.3";
+})(ts || (ts = {}));
 (function (ts) {
     var createObject = Object.create;
     ts.collator = typeof Intl === "object" && typeof Intl.Collator === "function" ? new Intl.Collator() : undefined;
@@ -606,7 +609,7 @@ var ts;
         if (value === undefined)
             return to;
         if (to === undefined)
-            to = [];
+            return [value];
         to.push(value);
         return to;
     }
@@ -621,6 +624,14 @@ var ts;
         return to;
     }
     ts.addRange = addRange;
+    function stableSort(array, comparer) {
+        if (comparer === void 0) { comparer = compareValues; }
+        return array
+            .map(function (_, i) { return i; })
+            .sort(function (x, y) { return comparer(array[x], array[y]) || compareValues(x, y); })
+            .map(function (i) { return array[i]; });
+    }
+    ts.stableSort = stableSort;
     function rangeEquals(array1, array2, pos, end) {
         while (pos < end) {
             if (array1[pos] !== array2[pos]) {
@@ -775,6 +786,15 @@ var ts;
         }
     }
     ts.copyProperties = copyProperties;
+    function appendProperty(map, key, value) {
+        if (key === undefined || value === undefined)
+            return map;
+        if (map === undefined)
+            map = createMap();
+        map[key] = value;
+        return map;
+    }
+    ts.appendProperty = appendProperty;
     function assign(t) {
         var args = [];
         for (var _i = 1; _i < arguments.length; _i++) {
@@ -1227,6 +1247,14 @@ var ts;
             getEmitScriptTarget(compilerOptions) >= 2 ? ts.ModuleKind.ES2015 : ts.ModuleKind.CommonJS;
     }
     ts.getEmitModuleKind = getEmitModuleKind;
+    function getEmitModuleResolutionKind(compilerOptions) {
+        var moduleResolution = compilerOptions.moduleResolution;
+        if (moduleResolution === undefined) {
+            moduleResolution = getEmitModuleKind(compilerOptions) === ts.ModuleKind.CommonJS ? ts.ModuleResolutionKind.NodeJs : ts.ModuleResolutionKind.Classic;
+        }
+        return moduleResolution;
+    }
+    ts.getEmitModuleResolutionKind = getEmitModuleResolutionKind;
     function hasZeroOrOneAsteriskCharacter(str) {
         var seenAsterisk = false;
         for (var i = 0; i < str.length; i++) {
@@ -1777,6 +1805,16 @@ var ts;
         }
         Debug.fail = fail;
     })(Debug = ts.Debug || (ts.Debug = {}));
+    function orderedRemoveItem(array, item) {
+        for (var i = 0; i < array.length; i++) {
+            if (array[i] === item) {
+                orderedRemoveItemAt(array, i);
+                return true;
+            }
+        }
+        return false;
+    }
+    ts.orderedRemoveItem = orderedRemoveItem;
     function orderedRemoveItemAt(array, index) {
         for (var i = index; i < array.length - 1; i++) {
             array[i] = array[i + 1];
@@ -2876,7 +2914,7 @@ var ts;
         An_async_function_or_method_must_return_a_Promise_Make_sure_you_have_a_declaration_for_Promise_or_include_ES2015_in_your_lib_option: { code: 2697, category: ts.DiagnosticCategory.Error, key: "An_async_function_or_method_must_return_a_Promise_Make_sure_you_have_a_declaration_for_Promise_or_in_2697", message: "An async function or method must return a 'Promise'. Make sure you have a declaration for 'Promise' or include 'ES2015' in your `--lib` option." },
         Spread_types_may_only_be_created_from_object_types: { code: 2698, category: ts.DiagnosticCategory.Error, key: "Spread_types_may_only_be_created_from_object_types_2698", message: "Spread types may only be created from object types." },
         Rest_types_may_only_be_created_from_object_types: { code: 2700, category: ts.DiagnosticCategory.Error, key: "Rest_types_may_only_be_created_from_object_types_2700", message: "Rest types may only be created from object types." },
-        An_object_rest_element_must_be_an_identifier: { code: 2701, category: ts.DiagnosticCategory.Error, key: "An_object_rest_element_must_be_an_identifier_2701", message: "An object rest element must be an identifier." },
+        The_target_of_an_object_rest_assignment_must_be_a_variable_or_a_property_access: { code: 2701, category: ts.DiagnosticCategory.Error, key: "The_target_of_an_object_rest_assignment_must_be_a_variable_or_a_property_access_2701", message: "The target of an object rest assignment must be a variable or a property access." },
         Import_declaration_0_is_using_private_name_1: { code: 4000, category: ts.DiagnosticCategory.Error, key: "Import_declaration_0_is_using_private_name_1_4000", message: "Import declaration '{0}' is using private name '{1}'." },
         Type_parameter_0_of_exported_class_has_or_is_using_private_name_1: { code: 4002, category: ts.DiagnosticCategory.Error, key: "Type_parameter_0_of_exported_class_has_or_is_using_private_name_1_4002", message: "Type parameter '{0}' of exported class has or is using private name '{1}'." },
         Type_parameter_0_of_exported_interface_has_or_is_using_private_name_1: { code: 4004, category: ts.DiagnosticCategory.Error, key: "Type_parameter_0_of_exported_interface_has_or_is_using_private_name_1_4004", message: "Type parameter '{0}' of exported interface has or is using private name '{1}'." },
@@ -3150,6 +3188,7 @@ var ts;
         type_assertion_expressions_can_only_be_used_in_a_ts_file: { code: 8016, category: ts.DiagnosticCategory.Error, key: "type_assertion_expressions_can_only_be_used_in_a_ts_file_8016", message: "'type assertion expressions' can only be used in a .ts file." },
         Only_identifiers_Slashqualified_names_with_optional_type_arguments_are_currently_supported_in_a_class_extends_clauses: { code: 9002, category: ts.DiagnosticCategory.Error, key: "Only_identifiers_Slashqualified_names_with_optional_type_arguments_are_currently_supported_in_a_clas_9002", message: "Only identifiers/qualified-names with optional type arguments are currently supported in a class 'extends' clauses." },
         class_expressions_are_not_currently_supported: { code: 9003, category: ts.DiagnosticCategory.Error, key: "class_expressions_are_not_currently_supported_9003", message: "'class' expressions are not currently supported." },
+        Language_service_is_disabled: { code: 9004, category: ts.DiagnosticCategory.Error, key: "Language_service_is_disabled_9004", message: "Language service is disabled." },
         JSX_attributes_must_only_be_assigned_a_non_empty_expression: { code: 17000, category: ts.DiagnosticCategory.Error, key: "JSX_attributes_must_only_be_assigned_a_non_empty_expression_17000", message: "JSX attributes must only be assigned a non-empty 'expression'." },
         JSX_elements_cannot_have_multiple_attributes_with_the_same_name: { code: 17001, category: ts.DiagnosticCategory.Error, key: "JSX_elements_cannot_have_multiple_attributes_with_the_same_name_17001", message: "JSX elements cannot have multiple attributes with the same name." },
         Expected_corresponding_JSX_closing_tag_for_0: { code: 17002, category: ts.DiagnosticCategory.Error, key: "Expected_corresponding_JSX_closing_tag_for_0_17002", message: "Expected corresponding JSX closing tag for '{0}'." },
@@ -3162,7 +3201,7 @@ var ts;
         super_must_be_called_before_accessing_this_in_the_constructor_of_a_derived_class: { code: 17009, category: ts.DiagnosticCategory.Error, key: "super_must_be_called_before_accessing_this_in_the_constructor_of_a_derived_class_17009", message: "'super' must be called before accessing 'this' in the constructor of a derived class." },
         Unknown_typing_option_0: { code: 17010, category: ts.DiagnosticCategory.Error, key: "Unknown_typing_option_0_17010", message: "Unknown typing option '{0}'." },
         Circularity_detected_while_resolving_configuration_Colon_0: { code: 18000, category: ts.DiagnosticCategory.Error, key: "Circularity_detected_while_resolving_configuration_Colon_0_18000", message: "Circularity detected while resolving configuration: {0}" },
-        The_path_in_an_extends_options_must_be_relative_or_rooted: { code: 18001, category: ts.DiagnosticCategory.Error, key: "The_path_in_an_extends_options_must_be_relative_or_rooted_18001", message: "The path in an 'extends' options must be relative or rooted." },
+        A_path_in_an_extends_option_must_be_relative_or_rooted_but_0_is_not: { code: 18001, category: ts.DiagnosticCategory.Error, key: "A_path_in_an_extends_option_must_be_relative_or_rooted_but_0_is_not_18001", message: "A path in an 'extends' option must be relative or rooted, but '{0}' is not." },
         The_files_list_in_config_file_0_is_empty: { code: 18002, category: ts.DiagnosticCategory.Error, key: "The_files_list_in_config_file_0_is_empty_18002", message: "The 'files' list in config file '{0}' is empty." },
         No_inputs_were_found_in_config_file_0_Specified_include_paths_were_1_and_exclude_paths_were_2: { code: 18003, category: ts.DiagnosticCategory.Error, key: "No_inputs_were_found_in_config_file_0_Specified_include_paths_were_1_and_exclude_paths_were_2_18003", message: "No inputs were found in config file '{0}'. Specified 'include' paths were '{1}' and 'exclude' paths were '{2}'." },
         Add_missing_super_call: { code: 90001, category: ts.DiagnosticCategory.Message, key: "Add_missing_super_call_90001", message: "Add missing 'super()' call." },
@@ -3174,6 +3213,9 @@ var ts;
         Implement_inherited_abstract_class: { code: 90007, category: ts.DiagnosticCategory.Message, key: "Implement_inherited_abstract_class_90007", message: "Implement inherited abstract class" },
         Adding_a_tsconfig_json_file_will_help_organize_projects_that_contain_both_TypeScript_and_JavaScript_files_Learn_more_at_https_Colon_Slash_Slashaka_ms_Slashtsconfig: { code: 90009, category: ts.DiagnosticCategory.Error, key: "Adding_a_tsconfig_json_file_will_help_organize_projects_that_contain_both_TypeScript_and_JavaScript__90009", message: "Adding a tsconfig.json file will help organize projects that contain both TypeScript and JavaScript files. Learn more at https://aka.ms/tsconfig" },
         Type_0_is_not_assignable_to_type_1_Two_different_types_with_this_name_exist_but_they_are_unrelated: { code: 90010, category: ts.DiagnosticCategory.Error, key: "Type_0_is_not_assignable_to_type_1_Two_different_types_with_this_name_exist_but_they_are_unrelated_90010", message: "Type '{0}' is not assignable to type '{1}'. Two different types with this name exist, but they are unrelated." },
+        Import_0_from_1: { code: 90013, category: ts.DiagnosticCategory.Message, key: "Import_0_from_1_90013", message: "Import {0} from {1}" },
+        Change_0_to_1: { code: 90014, category: ts.DiagnosticCategory.Message, key: "Change_0_to_1_90014", message: "Change {0} to {1}" },
+        Add_0_to_existing_import_declaration_from_1: { code: 90015, category: ts.DiagnosticCategory.Message, key: "Add_0_to_existing_import_declaration_from_1_90015", message: "Add {0} to existing import declaration from {1}" },
     };
 })(ts || (ts = {}));
 var ts;
@@ -5525,7 +5567,7 @@ var ts;
         };
         function tryExtendsName(extendedConfig) {
             if (!(ts.isRootedDiskPath(extendedConfig) || ts.startsWith(ts.normalizeSlashes(extendedConfig), "./") || ts.startsWith(ts.normalizeSlashes(extendedConfig), "../"))) {
-                errors.push(ts.createCompilerDiagnostic(ts.Diagnostics.The_path_in_an_extends_options_must_be_relative_or_rooted));
+                errors.push(ts.createCompilerDiagnostic(ts.Diagnostics.A_path_in_an_extends_option_must_be_relative_or_rooted_but_0_is_not, extendedConfig));
                 return;
             }
             var extendedConfigPath = ts.toPath(extendedConfig, basePath, getCanonicalFileName);
@@ -6057,6 +6099,7 @@ var ts;
     function moduleHasNonRelativeName(moduleName) {
         return !(ts.isRootedDiskPath(moduleName) || ts.isExternalModuleNameRelative(moduleName));
     }
+    ts.moduleHasNonRelativeName = moduleHasNonRelativeName;
     function tryReadTypesSection(extensions, packageJsonPath, baseDirectory, state) {
         var jsonContent = readJson(packageJsonPath, state.host);
         switch (extensions) {
@@ -6618,9 +6661,17 @@ var ts;
                 isEnabled: function () { return false; },
                 writeLine: ts.noop
             };
-            function typingToFileName(cachePath, packageName, installTypingHost) {
-                var result = ts.resolveModuleName(packageName, ts.combinePaths(cachePath, "index.d.ts"), { moduleResolution: ts.ModuleResolutionKind.NodeJs }, installTypingHost);
-                return result.resolvedModule && result.resolvedModule.resolvedFileName;
+            function typingToFileName(cachePath, packageName, installTypingHost, log) {
+                try {
+                    var result = ts.resolveModuleName(packageName, ts.combinePaths(cachePath, "index.d.ts"), { moduleResolution: ts.ModuleResolutionKind.NodeJs }, installTypingHost);
+                    return result.resolvedModule && result.resolvedModule.resolvedFileName;
+                }
+                catch (e) {
+                    if (log.isEnabled()) {
+                        log.writeLine("Failed to resolve " + packageName + " in folder '" + cachePath + "': " + e.message);
+                    }
+                    return undefined;
+                }
             }
             var PackageNameValidationResult;
             (function (PackageNameValidationResult) {
@@ -6749,8 +6800,9 @@ var ts;
                                 if (!packageName) {
                                     continue;
                                 }
-                                var typingFile = typingToFileName(cacheLocation, packageName, this.installTypingHost);
+                                var typingFile = typingToFileName(cacheLocation, packageName, this.installTypingHost, this.log);
                                 if (!typingFile) {
+                                    this.missingTypingsSet[packageName] = true;
                                     continue;
                                 }
                                 var existingTypingFile = this.packageNameToTypingLocation[packageName];
@@ -6781,7 +6833,7 @@ var ts;
                     var result = [];
                     for (var _i = 0, typingsToInstall_1 = typingsToInstall; _i < typingsToInstall_1.length; _i++) {
                         var typing = typingsToInstall_1[_i];
-                        if (this.missingTypingsSet[typing]) {
+                        if (this.missingTypingsSet[typing] || this.packageNameToTypingLocation[typing]) {
                             continue;
                         }
                         var validationResult = validatePackageName(typing);
@@ -6857,7 +6909,8 @@ var ts;
                             _this.sendResponse({
                                 kind: server.EventInstall,
                                 packagesToInstall: scopedTypings,
-                                installSuccess: ok
+                                installSuccess: ok,
+                                typingsInstallerVersion: ts.version
                             });
                         }
                         if (!ok) {
@@ -6871,17 +6924,14 @@ var ts;
                             return;
                         }
                         if (_this.log.isEnabled()) {
-                            _this.log.writeLine("Requested to install typings " + JSON.stringify(scopedTypings) + ", installed typings " + JSON.stringify(scopedTypings));
+                            _this.log.writeLine("Installed typings " + JSON.stringify(scopedTypings));
                         }
                         var installedTypingFiles = [];
-                        for (var _a = 0, scopedTypings_1 = scopedTypings; _a < scopedTypings_1.length; _a++) {
-                            var t = scopedTypings_1[_a];
-                            var packageName = ts.getBaseFileName(t);
-                            if (!packageName) {
-                                continue;
-                            }
-                            var typingFile = typingToFileName(cachePath, packageName, _this.installTypingHost);
+                        for (var _a = 0, filteredTypings_2 = filteredTypings; _a < filteredTypings_2.length; _a++) {
+                            var packageName = filteredTypings_2[_a];
+                            var typingFile = typingToFileName(cachePath, packageName, _this.installTypingHost, _this.log);
                             if (!typingFile) {
+                                _this.missingTypingsSet[packageName] = true;
                                 continue;
                             }
                             if (!_this.packageNameToTypingLocation[packageName]) {
@@ -7021,14 +7071,13 @@ var ts;
                         _this.log.writeLine("Process id: " + process.pid);
                     }
                     _this.npmPath = getNPMLocation(process.argv[0]);
-                    var execSync;
-                    (_a = require("child_process"), _this.exec = _a.exec, execSync = _a.execSync, _a);
+                    (_this.execSync = require("child_process").execSync);
                     _this.ensurePackageDirectoryExists(globalTypingsCacheLocation);
                     try {
                         if (_this.log.isEnabled()) {
                             _this.log.writeLine("Updating " + TypesRegistryPackageName + " npm package...");
                         }
-                        execSync(_this.npmPath + " install " + TypesRegistryPackageName, { cwd: globalTypingsCacheLocation, stdio: "ignore" });
+                        _this.execSync(_this.npmPath + " install " + TypesRegistryPackageName, { cwd: globalTypingsCacheLocation, stdio: "ignore" });
                     }
                     catch (e) {
                         if (_this.log.isEnabled()) {
@@ -7037,7 +7086,6 @@ var ts;
                     }
                     _this.typesRegistry = loadTypesRegistryFile(getTypesRegistryFileLocation(globalTypingsCacheLocation), _this.installTypingHost, _this.log);
                     return _this;
-                    var _a;
                 }
                 NodeTypingsInstaller.prototype.listen = function () {
                     var _this = this;
@@ -7061,18 +7109,26 @@ var ts;
                     }
                 };
                 NodeTypingsInstaller.prototype.installWorker = function (requestId, args, cwd, onRequestCompleted) {
-                    var _this = this;
                     if (this.log.isEnabled()) {
                         this.log.writeLine("#" + requestId + " with arguments'" + JSON.stringify(args) + "'.");
                     }
                     var command = this.npmPath + " install " + args.join(" ") + " --save-dev";
                     var start = Date.now();
-                    this.exec(command, { cwd: cwd }, function (err, stdout, stderr) {
-                        if (_this.log.isEnabled()) {
-                            _this.log.writeLine("npm install #" + requestId + " took: " + (Date.now() - start) + " ms" + ts.sys.newLine + "stdout: " + stdout + ts.sys.newLine + "stderr: " + stderr);
-                        }
-                        onRequestCompleted(!err);
-                    });
+                    var stdout;
+                    var stderr;
+                    var hasError = false;
+                    try {
+                        stdout = this.execSync(command, { cwd: cwd });
+                    }
+                    catch (e) {
+                        stdout = e.stdout;
+                        stderr = e.stderr;
+                        hasError = true;
+                    }
+                    if (this.log.isEnabled()) {
+                        this.log.writeLine("npm install #" + requestId + " took: " + (Date.now() - start) + " ms" + ts.sys.newLine + "stdout: " + (stdout && stdout.toString()) + ts.sys.newLine + "stderr: " + (stderr && stderr.toString()));
+                    }
+                    onRequestCompleted(!hasError);
                 };
                 return NodeTypingsInstaller;
             }(typingsInstaller.TypingsInstaller));