Update LKG

lib/lib.d.ts

@@ -166,14 +166,14 @@ interface ObjectConstructor {
       * Creates an object that has the specified prototype, and that optionally contains specified properties.
       * @param o Object to use as a prototype. May be null
       */
-    create<T>(o: T): T;
+    create<T extends object>(o: T): T;
 
     /**
       * Creates an object that has the specified prototype, and that optionally contains specified properties.
       * @param o Object to use as a prototype. May be null
       * @param properties JavaScript object that contains one or more property descriptors.
       */
-    create(o: any, properties: PropertyDescriptorMap): any;
+    create(o: object | null, properties: PropertyDescriptorMap): any;
 
     /**
       * Adds a property to an object, or modifies attributes of an existing property.

lib/lib.es2015.collection.d.ts

@@ -24,7 +24,7 @@ interface Map<K, V> {
     forEach(callbackfn: (value: V, key: K, map: Map<K, V>) => void, thisArg?: any): void;
     get(key: K): V | undefined;
     has(key: K): boolean;
-    set(key: K, value?: V): this;
+    set(key: K, value: V): this;
     readonly size: number;
 }
 
@@ -42,16 +42,16 @@ interface ReadonlyMap<K, V> {
     readonly size: number;
 }
 
-interface WeakMap<K, V> {
+interface WeakMap<K extends object, V> {
     delete(key: K): boolean;
     get(key: K): V | undefined;
     has(key: K): boolean;
-    set(key: K, value?: V): this;
+    set(key: K, value: V): this;
 }
 
 interface WeakMapConstructor {
     new (): WeakMap<any, any>;
-    new <K, V>(entries?: [K, V][]): WeakMap<K, V>;
+    new <K extends object, V>(entries?: [K, V][]): WeakMap<K, V>;
     readonly prototype: WeakMap<any, any>;
 }
 declare var WeakMap: WeakMapConstructor;

lib/lib.es2015.core.d.ts

@@ -345,7 +345,7 @@ interface ObjectConstructor {
       * @param o The object to change its prototype.
       * @param proto The value of the new prototype or null.
       */
-    setPrototypeOf(o: any, proto: any): any;
+    setPrototypeOf(o: any, proto: object | null): any;
 
     /**
       * Gets the own property descriptor of the specified object.

lib/lib.es2015.iterable.d.ts

@@ -119,10 +119,10 @@ interface MapConstructor {
     new <K, V>(iterable: Iterable<[K, V]>): Map<K, V>;
 }
 
-interface WeakMap<K, V> { }
+interface WeakMap<K extends object, V> { }
 
 interface WeakMapConstructor {
-    new <K, V>(iterable: Iterable<[K, V]>): WeakMap<K, V>;
+    new <K extends object, V>(iterable: Iterable<[K, V]>): WeakMap<K, V>;
 }
 
 interface Set<T> {
@@ -462,4 +462,4 @@ interface Float64ArrayConstructor {
       * @param thisArg Value of 'this' used to invoke the mapfn.
       */
     from(arrayLike: Iterable<number>, mapfn?: (v: number, k: number) => number, thisArg?: any): Float64Array;
-}
+}

lib/lib.es2015.proxy.d.ts

@@ -19,7 +19,7 @@ and limitations under the License.
 
 
 interface ProxyHandler<T> {
-    getPrototypeOf? (target: T): {} | null;
+    getPrototypeOf? (target: T): object | null;
     setPrototypeOf? (target: T, v: any): boolean;
     isExtensible? (target: T): boolean;
     preventExtensions? (target: T): boolean;
@@ -32,7 +32,7 @@ interface ProxyHandler<T> {
     enumerate? (target: T): PropertyKey[];
     ownKeys? (target: T): PropertyKey[];
     apply? (target: T, thisArg: any, argArray?: any): any;
-    construct? (target: T, argArray: any, newTarget?: any): {};
+    construct? (target: T, argArray: any, newTarget?: any): object
 }
 
 interface ProxyConstructor {

lib/lib.es2015.symbol.d.ts

@@ -23,7 +23,7 @@ interface Symbol {
     toString(): string;
 
     /** Returns the primitive value of the specified object. */
-    valueOf(): Object;
+    valueOf(): symbol;
 }
 
 interface SymbolConstructor {

lib/lib.es2015.symbol.wellknown.d.ts

@@ -130,7 +130,7 @@ interface Map<K, V> {
     readonly [Symbol.toStringTag]: "Map";
 }
 
-interface WeakMap<K, V>{
+interface WeakMap<K extends object, V>{
     readonly [Symbol.toStringTag]: "WeakMap";
 }
 
@@ -344,4 +344,4 @@ interface Float32Array {
   */
 interface Float64Array {
     readonly [Symbol.toStringTag]: "Float64Array";
-}
+}

lib/lib.es5.d.ts

@@ -166,14 +166,14 @@ interface ObjectConstructor {
       * Creates an object that has the specified prototype, and that optionally contains specified properties.
       * @param o Object to use as a prototype. May be null
       */
-    create<T>(o: T): T;
+    create<T extends object>(o: T): T;
 
     /**
       * Creates an object that has the specified prototype, and that optionally contains specified properties.
       * @param o Object to use as a prototype. May be null
       * @param properties JavaScript object that contains one or more property descriptors.
       */
-    create(o: any, properties: PropertyDescriptorMap): any;
+    create(o: object | null, properties: PropertyDescriptorMap): any;
 
     /**
       * Adds a property to an object, or modifies attributes of an existing property.

lib/lib.es6.d.ts

@@ -166,14 +166,14 @@ interface ObjectConstructor {
       * Creates an object that has the specified prototype, and that optionally contains specified properties.
       * @param o Object to use as a prototype. May be null
       */
-    create<T>(o: T): T;
+    create<T extends object>(o: T): T;
 
     /**
       * Creates an object that has the specified prototype, and that optionally contains specified properties.
       * @param o Object to use as a prototype. May be null
       * @param properties JavaScript object that contains one or more property descriptors.
       */
-    create(o: any, properties: PropertyDescriptorMap): any;
+    create(o: object | null, properties: PropertyDescriptorMap): any;
 
     /**
       * Adds a property to an object, or modifies attributes of an existing property.
@@ -4523,7 +4523,7 @@ interface ObjectConstructor {
       * @param o The object to change its prototype.
       * @param proto The value of the new prototype or null.
       */
-    setPrototypeOf(o: any, proto: any): any;
+    setPrototypeOf(o: any, proto: object | null): any;
 
     /**
       * Gets the own property descriptor of the specified object.
@@ -4728,7 +4728,7 @@ interface Map<K, V> {
     forEach(callbackfn: (value: V, key: K, map: Map<K, V>) => void, thisArg?: any): void;
     get(key: K): V | undefined;
     has(key: K): boolean;
-    set(key: K, value?: V): this;
+    set(key: K, value: V): this;
     readonly size: number;
 }
 
@@ -4746,16 +4746,16 @@ interface ReadonlyMap<K, V> {
     readonly size: number;
 }
 
-interface WeakMap<K, V> {
+interface WeakMap<K extends object, V> {
     delete(key: K): boolean;
     get(key: K): V | undefined;
     has(key: K): boolean;
-    set(key: K, value?: V): this;
+    set(key: K, value: V): this;
 }
 
 interface WeakMapConstructor {
     new (): WeakMap<any, any>;
-    new <K, V>(entries?: [K, V][]): WeakMap<K, V>;
+    new <K extends object, V>(entries?: [K, V][]): WeakMap<K, V>;
     readonly prototype: WeakMap<any, any>;
 }
 declare var WeakMap: WeakMapConstructor;
@@ -4911,10 +4911,10 @@ interface MapConstructor {
     new <K, V>(iterable: Iterable<[K, V]>): Map<K, V>;
 }
 
-interface WeakMap<K, V> { }
+interface WeakMap<K extends object, V> { }
 
 interface WeakMapConstructor {
-    new <K, V>(iterable: Iterable<[K, V]>): WeakMap<K, V>;
+    new <K extends object, V>(iterable: Iterable<[K, V]>): WeakMap<K, V>;
 }
 
 interface Set<T> {
@@ -5256,6 +5256,7 @@ interface Float64ArrayConstructor {
     from(arrayLike: Iterable<number>, mapfn?: (v: number, k: number) => number, thisArg?: any): Float64Array;
 }
 
+
 /**
  * Represents the completion of an asynchronous operation
  */
@@ -5512,7 +5513,7 @@ interface PromiseConstructor {
 declare var Promise: PromiseConstructor;
 
 interface ProxyHandler<T> {
-    getPrototypeOf? (target: T): {} | null;
+    getPrototypeOf? (target: T): object | null;
     setPrototypeOf? (target: T, v: any): boolean;
     isExtensible? (target: T): boolean;
     preventExtensions? (target: T): boolean;
@@ -5525,7 +5526,7 @@ interface ProxyHandler<T> {
     enumerate? (target: T): PropertyKey[];
     ownKeys? (target: T): PropertyKey[];
     apply? (target: T, thisArg: any, argArray?: any): any;
-    construct? (target: T, argArray: any, newTarget?: any): {};
+    construct? (target: T, argArray: any, newTarget?: any): object
 }
 
 interface ProxyConstructor {
@@ -5556,7 +5557,7 @@ interface Symbol {
     toString(): string;
 
     /** Returns the primitive value of the specified object. */
-    valueOf(): Object;
+    valueOf(): symbol;
 }
 
 interface SymbolConstructor {
@@ -5700,7 +5701,7 @@ interface Map<K, V> {
     readonly [Symbol.toStringTag]: "Map";
 }
 
-interface WeakMap<K, V>{
+interface WeakMap<K extends object, V>{
     readonly [Symbol.toStringTag]: "WeakMap";
 }
 
@@ -5917,6 +5918,7 @@ interface Float64Array {
 }
 
 
+
 /////////////////////////////
 /// IE DOM APIs
 /////////////////////////////

lib/protocol.d.ts

@@ -1798,9 +1798,10 @@ declare namespace ts.server.protocol {
     namespace JsxEmit {
         type None = "None";
         type Preserve = "Preserve";
+        type ReactNative = "ReactNative";
         type React = "React";
     }
-    type JsxEmit = JsxEmit.None | JsxEmit.Preserve | JsxEmit.React;
+    type JsxEmit = JsxEmit.None | JsxEmit.Preserve | JsxEmit.React | JsxEmit.ReactNative;
     namespace ModuleKind {
         type None = "None";
         type CommonJS = "CommonJS";
@@ -1862,6 +1863,11 @@ declare namespace ts.server.protocol {
         isMixedContent: boolean;
     }
 
+    /**
+     * Type of objects whose values are all of the same type.
+     * The `in` and `for-in` operators can *not* be safely used,
+     * since `Object.prototype` may be modified by outside code.
+     */
     interface MapLike<T> {
         [index: string]: T;
     }