fix(es2018): add a target and an initial lib (#20385)

* run Jake LKG before es2018 addition

Fixes #20342

* fix(es2018): add a target and an initial lib

Fixes #20342

Gulpfile.ts

@@ -145,6 +145,10 @@ const es2017LibrarySource = [
 const es2017LibrarySourceMap = es2017LibrarySource.map(source =>
     ({ target: "lib." + source, sources: ["header.d.ts", source] }));
 
+const es2018LibrarySource = [];
+const es2018LibrarySourceMap = es2018LibrarySource.map(source =>
+    ({ target: "lib." + source, sources: ["header.d.ts", source] }));
+
 const esnextLibrarySource = [
     "esnext.asynciterable.d.ts"
 ];
@@ -166,15 +170,17 @@ const librarySourceMap = [
     { target: "lib.es2015.d.ts", sources: ["header.d.ts", "es2015.d.ts"] },
     { target: "lib.es2016.d.ts", sources: ["header.d.ts", "es2016.d.ts"] },
     { target: "lib.es2017.d.ts", sources: ["header.d.ts", "es2017.d.ts"] },
+    { target: "lib.es2018.d.ts", sources: ["header.d.ts", "es2018.d.ts"] },
     { target: "lib.esnext.d.ts", sources: ["header.d.ts", "esnext.d.ts"] },
 
     // JavaScript + all host library
     { target: "lib.d.ts", sources: ["header.d.ts", "es5.d.ts"].concat(hostsLibrarySources) },
     { target: "lib.es6.d.ts", sources: ["header.d.ts", "es5.d.ts"].concat(es2015LibrarySources, hostsLibrarySources, "dom.iterable.d.ts") },
     { target: "lib.es2016.full.d.ts", sources: ["header.d.ts", "es2016.d.ts"].concat(hostsLibrarySources, "dom.iterable.d.ts") },
     { target: "lib.es2017.full.d.ts", sources: ["header.d.ts", "es2017.d.ts"].concat(hostsLibrarySources, "dom.iterable.d.ts") },
+    { target: "lib.es2018.full.d.ts", sources: ["header.d.ts", "es2018.d.ts"].concat(hostsLibrarySources, "dom.iterable.d.ts") },
     { target: "lib.esnext.full.d.ts", sources: ["header.d.ts", "esnext.d.ts"].concat(hostsLibrarySources, "dom.iterable.d.ts") },
-].concat(es2015LibrarySourceMap, es2016LibrarySourceMap, es2017LibrarySourceMap, esnextLibrarySourceMap);
+].concat(es2015LibrarySourceMap, es2016LibrarySourceMap, es2017LibrarySourceMap, es2018LibrarySourceMap, esnextLibrarySourceMap);
 
 const libraryTargets = librarySourceMap.map(f =>
     path.join(builtLocalDirectory, f.target));

Jakefile.js

@@ -205,6 +205,12 @@ var es2017LibrarySourceMap = es2017LibrarySource.map(function (source) {
     return { target: "lib." + source, sources: ["header.d.ts", source] };
 });
 
+var es2018LibrarySource = [];
+
+var es2018LibrarySourceMap = es2018LibrarySource.map(function (source) {
+    return { target: "lib." + source, sources: ["header.d.ts", source] };
+});
+
 var esnextLibrarySource = [
     "esnext.asynciterable.d.ts"
 ];
@@ -227,15 +233,17 @@ var librarySourceMap = [
     { target: "lib.es2015.d.ts", sources: ["header.d.ts", "es2015.d.ts"] },
     { target: "lib.es2016.d.ts", sources: ["header.d.ts", "es2016.d.ts"] },
     { target: "lib.es2017.d.ts", sources: ["header.d.ts", "es2017.d.ts"] },
+    { target: "lib.es2018.d.ts", sources: ["header.d.ts", "es2018.d.ts"] },
     { target: "lib.esnext.d.ts", sources: ["header.d.ts", "esnext.d.ts"] },
 
     // JavaScript + all host library
     { target: "lib.d.ts", sources: ["header.d.ts", "es5.d.ts"].concat(hostsLibrarySources) },
     { target: "lib.es6.d.ts", sources: ["header.d.ts", "es5.d.ts"].concat(es2015LibrarySources, hostsLibrarySources, "dom.iterable.d.ts") },
     { target: "lib.es2016.full.d.ts", sources: ["header.d.ts", "es2016.d.ts"].concat(hostsLibrarySources, "dom.iterable.d.ts") },
     { target: "lib.es2017.full.d.ts", sources: ["header.d.ts", "es2017.d.ts"].concat(hostsLibrarySources, "dom.iterable.d.ts") },
+    { target: "lib.es2018.full.d.ts", sources: ["header.d.ts", "es2018.d.ts"].concat(hostsLibrarySources, "dom.iterable.d.ts") },
     { target: "lib.esnext.full.d.ts", sources: ["header.d.ts", "esnext.d.ts"].concat(hostsLibrarySources, "dom.iterable.d.ts") },
-].concat(es2015LibrarySourceMap, es2016LibrarySourceMap, es2017LibrarySourceMap, esnextLibrarySourceMap);
+].concat(es2015LibrarySourceMap, es2016LibrarySourceMap, es2017LibrarySourceMap, es2018LibrarySourceMap, esnextLibrarySourceMap);
 
 var libraryTargets = librarySourceMap.map(function (f) {
     return path.join(builtLocalDirectory, f.target);

lib/cancellationToken.js

@@ -69,5 +69,3 @@ function createCancellationToken(args) {
     }
 }
 module.exports = createCancellationToken;
-
-//# sourceMappingURL=cancellationToken.js.map

lib/lib.dom.iterable.d.ts

@@ -24,23 +24,6 @@ interface DOMTokenList {
     [Symbol.iterator](): IterableIterator<string>;
 }
 
-interface FormData {
-    /**
-     * Returns an array of key, value pairs for every entry in the list
-     */
-    entries(): IterableIterator<[string, string | File]>;
-    /**
-     * Returns a list of keys in the list
-     */
-    keys(): IterableIterator<string>;
-    /**
-     * Returns a list of values in the list
-     */
-    values(): IterableIterator<string | File>;
-
-    [Symbol.iterator](): IterableIterator<string | File>;
-}
-
 interface Headers {
     [Symbol.iterator](): IterableIterator<[string, string]>;
     /**
@@ -107,6 +90,31 @@ interface NodeListOf<TNode extends Node> {
     [Symbol.iterator](): IterableIterator<TNode>;
 }
 
+interface HTMLCollectionBase {
+    [Symbol.iterator](): IterableIterator<Element>;
+}
+
+interface HTMLCollectionOf<T extends Element> {
+    [Symbol.iterator](): IterableIterator<T>;
+}
+
+interface FormData {
+    /**
+     * Returns an array of key, value pairs for every entry in the list
+     */
+    entries(): IterableIterator<[string, string | File]>;
+    /**
+     * Returns a list of keys in the list
+     */
+    keys(): IterableIterator<string>;
+    /**
+     * Returns a list of values in the list
+     */
+    values(): IterableIterator<string | File>;
+
+    [Symbol.iterator](): IterableIterator<string | File>;
+}
+
 interface URLSearchParams {
     /**
      * Returns an array of key, value pairs for every entry in the search params

lib/lib.es2015.core.d.ts

@@ -30,6 +30,7 @@ interface Array<T> {
      * @param thisArg If provided, it will be used as the this value for each invocation of
      * predicate. If it is not provided, undefined is used instead.
      */
+    find<S extends T>(predicate: (this: void, value: T, index: number, obj: T[]) => value is S, thisArg?: any): S | undefined;
     find(predicate: (value: T, index: number, obj: T[]) => boolean, thisArg?: any): T | undefined;
 
     /**
@@ -69,10 +70,16 @@ interface ArrayConstructor {
     /**
      * Creates an array from an array-like object.
      * @param arrayLike An array-like object to convert to an array.
+     */
+    from<T>(arrayLike: ArrayLike<T>): T[];
+
+    /**
+     * Creates an array from an iterable object.
+     * @param arrayLike An array-like object to convert to an array.
      * @param mapfn A mapping function to call on every element of the array.
      * @param thisArg Value of 'this' used to invoke the mapfn.
      */
-    from<T, U = T>(arrayLike: ArrayLike<T>, mapfn?: (v: T, k: number) => U, thisArg?: any): U[];
+    from<T, U>(arrayLike: ArrayLike<T>, mapfn: (v: T, k: number) => U, thisArg?: any): U[];
 
     /**
      * Returns a new array from a set of elements.
@@ -182,7 +189,7 @@ interface Math {
      *     If any argument is NaN, the result is NaN.
      *     If all arguments are either +0 or −0, the result is +0.
      */
-    hypot(...values: number[] ): number;
+    hypot(...values: number[]): number;
 
     /**
      * Returns the integral part of the a numeric expression, x, removing any fractional digits.
@@ -370,6 +377,7 @@ interface ReadonlyArray<T> {
      * @param thisArg If provided, it will be used as the this value for each invocation of
      * predicate. If it is not provided, undefined is used instead.
      */
+    find<S extends T>(predicate: (this: void, value: T, index: number, obj: ReadonlyArray<T>) => value is S, thisArg?: any): S | undefined;
     find(predicate: (value: T, index: number, obj: ReadonlyArray<T>) => boolean, thisArg?: any): T | undefined;
 
     /**
@@ -461,7 +469,7 @@ interface String {
 
     /**
      * Returns a String value that is made from count copies appended together. If count is 0,
-     * T is the empty String is returned.
+     * the empty string is returned.
      * @param count number of copies to append
      */
     repeat(count: number): string;

lib/lib.es2015.iterable.d.ts

@@ -68,13 +68,19 @@ interface Array<T> {
 }
 
 interface ArrayConstructor {
+    /**
+     * Creates an array from an iterable object.
+     * @param iterable An iterable object to convert to an array.
+     */
+    from<T>(iterable: Iterable<T>): T[];
+
     /**
      * Creates an array from an iterable object.
      * @param iterable An iterable object to convert to an array.
      * @param mapfn A mapping function to call on every element of the array.
      * @param thisArg Value of 'this' used to invoke the mapfn.
      */
-    from<T, U = T>(iterable: Iterable<T>, mapfn?: (v: T, k: number) => U, thisArg?: any): U[];
+    from<T, U>(iterable: Iterable<T>, mapfn: (v: T, k: number) => U, thisArg?: any): U[];
 }
 
 interface ReadonlyArray<T> {

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

@@ -170,7 +170,7 @@ interface Promise<T> {
 }
 
 interface PromiseConstructor {
-    readonly [Symbol.species]: Function;
+    readonly [Symbol.species]: PromiseConstructor;
 }
 
 interface RegExp {
@@ -222,7 +222,7 @@ interface RegExp {
 }
 
 interface RegExpConstructor {
-    [Symbol.species](): RegExpConstructor;
+    readonly [Symbol.species]: RegExpConstructor;
 }
 
 interface String {
@@ -303,3 +303,16 @@ interface Float32Array {
 interface Float64Array {
     readonly [Symbol.toStringTag]: "Float64Array";
 }
+
+interface ArrayConstructor {
+    readonly [Symbol.species]: ArrayConstructor;
+}
+interface MapConstructor {
+    readonly [Symbol.species]: MapConstructor;
+}
+interface SetConstructor {
+    readonly [Symbol.species]: SetConstructor;
+}
+interface ArrayBufferConstructor {
+    readonly [Symbol.species]: ArrayBufferConstructor;
+}