fix: fix for ES2021 libs

Author: uhyo

build/replacement.ts

@@ -45,6 +45,6 @@ export const replacement = new Map([
   ["es2018.asyncgenerator.d.ts", new Set(["AsyncGenerator"])],
   ["es2018.asynciterable.d.ts", new Set(["AsyncIterator"])],
   ["es2019.object.d.ts", new Set(["ObjectConstructor"])],
-  ["esnext.promise.d.ts", new Set(["AggregateError"])],
-  ["esnext.string.d.ts", new Set(["String"])],
+  ["es2021.promise.d.ts", new Set(["AggregateError"])],
+  ["es2021.string.d.ts", new Set(["String"])],
 ]);

generated/lib.es2021.promise.d.ts

@@ -1,14 +1,19 @@
-interface AggregateError extends Error {
-    errors: any[]
-}
+/// <reference path="./better/lib.es2021.promise.d.ts" />
+
+// interface AggregateError extends Error {
+//     errors: any[]
+// }
+
 
 interface AggregateErrorConstructor {
     new(errors: Iterable<any>, message?: string): AggregateError;
     (errors: Iterable<any>, message?: string): AggregateError;
     readonly prototype: AggregateError;
-}
+}
+// 
+// 
+// declare var AggregateError: AggregateErrorConstructor;
 
-declare var AggregateError: AggregateErrorConstructor;
 
 /**
  * Represents the completion of an asynchronous operation

generated/lib.es2021.string.d.ts

@@ -1,15 +1,18 @@
-interface String {
-    /**
-     * Replace all instances of a substring in a string, using a regular expression or search string.
-     * @param searchValue A string to search for.
-     * @param replaceValue A string containing the text to replace for every successful match of searchValue in this string.
-     */
-    replaceAll(searchValue: string | RegExp, replaceValue: string): string;
+/// <reference path="./better/lib.es2021.string.d.ts" />
+
+// interface String {
+//     /**
+//      * Replace all instances of a substring in a string, using a regular expression or search string.
+//      * @param searchValue A string to search for.
+//      * @param replaceValue A string containing the text to replace for every successful match of searchValue in this string.
+//      */
+//     replaceAll(searchValue: string | RegExp, replaceValue: string): string;
+// 
+//     /**
+//      * Replace all instances of a substring in a string, using a regular expression or search string.
+//      * @param searchValue A string to search for.
+//      * @param replacer A function that returns the replacement text.
+//      */
+//     replaceAll(searchValue: string | RegExp, replacer: (substring: string, ...args: any[]) => string): string;
+// }
 
-    /**
-     * Replace all instances of a substring in a string, using a regular expression or search string.
-     * @param searchValue A string to search for.
-     * @param replacer A function that returns the replacement text.
-     */
-    replaceAll(searchValue: string | RegExp, replacer: (substring: string, ...args: any[]) => string): string;
-}

lib/lib.esnext.promise.d.ts renamed to lib/lib.es2021.promise.d.ts

@@ -15,7 +15,11 @@ interface String {
    */
   replaceAll(
     searchValue: string | RegExp,
-    // TODO: possible improvement in TS4.2
-    replacer: (substring: string, ...args: (string | number)[]) => string
+    replacer: (
+      substring: string,
+      // TODO: could be improved, but blocked by issue:
+      // https://github.com/microsoft/TypeScript/issues/45972
+      ...rest: (string | number)[]
+    ) => string
   ): string;
 }

lib/lib.esnext.string.d.ts renamed to lib/lib.es2021.string.d.ts

@@ -0,0 +1,9 @@
+/// <reference path="../generated/lib.es2021.d.ts" />
+
+// String
+"foobar".replaceAll(/foo/g, (substr, p1, p2) => {
+  // expectType<string>(substr);
+  // expectType<string | number>(p1);
+  // expectType<string | number>(p2);
+  return "";
+});