feat: add es2026 as a valid target and lib

packages/typescript/src/enums/scriptTarget.enum.ts

@@ -10,6 +10,7 @@ export enum ScriptTarget {
     ES2023 = 10,
     ES2024 = 11,
     ES2025 = 12,
+    ES2026 = 13,
     ESNext = 99,
     JSON = 100,
     Latest = ESNext,

packages/typescript/src/enums/scriptTarget.ts

@@ -11,6 +11,7 @@ export var ScriptTarget: any;
     ScriptTarget[ScriptTarget["ES2023"] = 10] = "ES2023";
     ScriptTarget[ScriptTarget["ES2024"] = 11] = "ES2024";
     ScriptTarget[ScriptTarget["ES2025"] = 12] = "ES2025";
+    ScriptTarget[ScriptTarget["ES2026"] = 13] = "ES2026";
     ScriptTarget[ScriptTarget["ESNext"] = 99] = "ESNext";
     ScriptTarget[ScriptTarget["JSON"] = 100] = "JSON";
     ScriptTarget[ScriptTarget["Latest"] = 99] = "Latest";

packages/typescript/test/async/api.test.ts

@@ -6551,7 +6551,7 @@ describe("Program - diagnostics", () => {
                 ...rangeOf(config, `"invalid"`),
                 code: 6046,
                 category: DiagnosticCategory.Error,
-                text: "Argument for '--target' option must be: 'es6', 'es2015', 'es2016', 'es2017', 'es2018', 'es2019', 'es2020', 'es2021', 'es2022', 'es2023', 'es2024', 'es2025', 'esnext'.",
+                text: "Argument for '--target' option must be: 'es6', 'es2015', 'es2016', 'es2017', 'es2018', 'es2019', 'es2020', 'es2021', 'es2022', 'es2023', 'es2024', 'es2025', 'es2026', 'esnext'.",
             }]);
         }
         finally {

packages/typescript/test/sync/api.test.ts

@@ -6467,7 +6467,7 @@ describe("Program - diagnostics", () => {
                 ...rangeOf(config, `"invalid"`),
                 code: 6046,
                 category: DiagnosticCategory.Error,
-                text: "Argument for '--target' option must be: 'es6', 'es2015', 'es2016', 'es2017', 'es2018', 'es2019', 'es2020', 'es2021', 'es2022', 'es2023', 'es2024', 'es2025', 'esnext'.",
+                text: "Argument for '--target' option must be: 'es6', 'es2015', 'es2016', 'es2017', 'es2018', 'es2019', 'es2020', 'es2021', 'es2022', 'es2023', 'es2024', 'es2025', 'es2026', 'esnext'.",
             }]);
         }
         finally {

tsc/internal/bundled/libs/lib.esnext.array.d.ts → tsc/internal/bundled/libs/lib.es2026.array.d.ts

@@ -16,18 +16,18 @@ and limitations under the License.
 
 interface ArrayConstructor {
     /**
-     * Creates an array from an async iterator or iterable object.
-     * @param iterableOrArrayLike An async iterator or array-like object to convert to an array.
+     * Creates an array from an async iterable, iterable, or array-like object.
+     * @param iterableOrArrayLike An async iterable, iterable, or array-like object to convert to an array.
      */
     fromAsync<T>(iterableOrArrayLike: AsyncIterable<T> | Iterable<T | PromiseLike<T>> | ArrayLike<T | PromiseLike<T>>): Promise<T[]>;
 
     /**
-     * Creates an array from an async iterator or iterable object.
+     * Creates an array from an async iterable, iterable, or array-like object.
      *
-     * @param iterableOrArrayLike An async iterator or array-like object to convert to an array.
-     * @param mapfn A mapping function to call on every element of itarableOrArrayLike.
-     *      Each return value is awaited before being added to result array.
-     * @param thisArg Value of 'this' used when executing mapfn.
+     * @param iterableOrArrayLike An async iterable, iterable, or array-like object to convert to an array.
+     * @param mapFn A mapping function to call on every element of `iterableOrArrayLike`.
+     *      Each return value is awaited before being added to the result array.
+     * @param thisArg Value of 'this' used when executing `mapFn`.
      */
     fromAsync<T, U>(iterableOrArrayLike: AsyncIterable<T> | Iterable<T> | ArrayLike<T>, mapFn: (value: Awaited<T>, index: number) => U, thisArg?: any): Promise<Awaited<U>[]>;
 }

tsc/internal/bundled/libs/lib.esnext.collection.d.ts → tsc/internal/bundled/libs/lib.es2026.collection.d.ts

@@ -26,7 +26,7 @@ interface Map<K, V> {
     /**
      * Returns a specified element from the Map object.
      * If no element is associated with the specified key, the result of passing the specified key to the `callback` function will be inserted into the Map and returned.
-     * @returns The element associated with the specific key, which will be the newly computed value if no element previously existed.
+     * @returns The element associated with the specified key, which will be the newly computed value if no element previously existed.
      */
     getOrInsertComputed(key: K, callback: (key: K) => V): V;
 }
@@ -41,7 +41,7 @@ interface WeakMap<K extends WeakKey, V> {
     /**
      * Returns a specified element from the WeakMap object.
      * If no element is associated with the specified key, the result of passing the specified key to the `callback` function will be inserted into the WeakMap and returned.
-     * @returns The element associated with the specific key, which will be the newly computed value if no element previously existed.
+     * @returns The element associated with the specified key, which will be the newly computed value if no element previously existed.
      */
     getOrInsertComputed(key: K, callback: (key: K) => V): V;
 }

tsc/internal/bundled/libs/lib.es2026.d.ts

@@ -0,0 +1,24 @@
+/*! *****************************************************************************
+Copyright (c) Microsoft Corporation. All rights reserved.
+Licensed under the Apache License, Version 2.0 (the "License"); you may not use
+this file except in compliance with the License. You may obtain a copy of the
+License at http://www.apache.org/licenses/LICENSE-2.0
+
+THIS CODE IS PROVIDED ON AN *AS IS* BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, EITHER EXPRESS OR IMPLIED, INCLUDING WITHOUT LIMITATION ANY IMPLIED
+WARRANTIES OR CONDITIONS OF TITLE, FITNESS FOR A PARTICULAR PURPOSE,
+MERCHANTABILITY OR NON-INFRINGEMENT.
+
+See the Apache Version 2.0 License for specific language governing permissions
+and limitations under the License.
+***************************************************************************** */
+
+
+/// <reference lib="es2025" />
+/// <reference lib="es2026.array" />
+/// <reference lib="es2026.collection" />
+/// <reference lib="es2026.error" />
+/// <reference lib="es2026.iterator" />
+/// <reference lib="es2026.json" />
+/// <reference lib="es2026.math" />
+/// <reference lib="es2026.typedarrays" />

tsc/internal/bundled/libs/lib.esnext.error.d.ts → tsc/internal/bundled/libs/lib.es2026.error.d.ts

@@ -16,7 +16,7 @@ and limitations under the License.
 
 interface ErrorConstructor {
     /**
-     * Indicates whether the argument provided is a built-in Error instance or not.
+     * Indicates whether the provided value is a built-in Error object.
      */
     isError(error: unknown): error is Error;
 }

tsc/internal/bundled/libs/lib.es2026.full.d.ts

@@ -0,0 +1,22 @@
+/*! *****************************************************************************
+Copyright (c) Microsoft Corporation. All rights reserved.
+Licensed under the Apache License, Version 2.0 (the "License"); you may not use
+this file except in compliance with the License. You may obtain a copy of the
+License at http://www.apache.org/licenses/LICENSE-2.0
+
+THIS CODE IS PROVIDED ON AN *AS IS* BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, EITHER EXPRESS OR IMPLIED, INCLUDING WITHOUT LIMITATION ANY IMPLIED
+WARRANTIES OR CONDITIONS OF TITLE, FITNESS FOR A PARTICULAR PURPOSE,
+MERCHANTABILITY OR NON-INFRINGEMENT.
+
+See the Apache Version 2.0 License for specific language governing permissions
+and limitations under the License.
+***************************************************************************** */
+
+
+/// <reference lib="es2026" />
+/// <reference lib="dom" />
+/// <reference lib="webworker.importscripts" />
+/// <reference lib="scripthost" />
+/// <reference lib="dom.iterable" />
+/// <reference lib="dom.asynciterable" />

tsc/internal/bundled/libs/lib.es2026.iterator.d.ts

@@ -0,0 +1,25 @@
+/*! *****************************************************************************
+Copyright (c) Microsoft Corporation. All rights reserved.
+Licensed under the Apache License, Version 2.0 (the "License"); you may not use
+this file except in compliance with the License. You may obtain a copy of the
+License at http://www.apache.org/licenses/LICENSE-2.0
+
+THIS CODE IS PROVIDED ON AN *AS IS* BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, EITHER EXPRESS OR IMPLIED, INCLUDING WITHOUT LIMITATION ANY IMPLIED
+WARRANTIES OR CONDITIONS OF TITLE, FITNESS FOR A PARTICULAR PURPOSE,
+MERCHANTABILITY OR NON-INFRINGEMENT.
+
+See the Apache Version 2.0 License for specific language governing permissions
+and limitations under the License.
+***************************************************************************** */
+
+
+/// <reference lib="es2025.iterator" />
+
+interface IteratorConstructor {
+    /**
+     * Creates an iterator that yields the values of each iterable in sequence.
+     * @param iterables Iterable objects to concatenate.
+     */
+    concat<T extends readonly unknown[] | []>(...iterables: { -readonly [K in keyof T]: Iterable<T[K]> & object }): IteratorObject<T[number], undefined, unknown>;
+}

tsc/internal/bundled/libs/lib.es2026.json.d.ts

@@ -0,0 +1,47 @@
+/*! *****************************************************************************
+Copyright (c) Microsoft Corporation. All rights reserved.
+Licensed under the Apache License, Version 2.0 (the "License"); you may not use
+this file except in compliance with the License. You may obtain a copy of the
+License at http://www.apache.org/licenses/LICENSE-2.0
+
+THIS CODE IS PROVIDED ON AN *AS IS* BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, EITHER EXPRESS OR IMPLIED, INCLUDING WITHOUT LIMITATION ANY IMPLIED
+WARRANTIES OR CONDITIONS OF TITLE, FITNESS FOR A PARTICULAR PURPOSE,
+MERCHANTABILITY OR NON-INFRINGEMENT.
+
+See the Apache Version 2.0 License for specific language governing permissions
+and limitations under the License.
+***************************************************************************** */
+
+
+/**
+ * A frozen object containing JSON text for a primitive value, created by `JSON.rawJSON()`.
+ */
+interface RawJSON {
+    readonly rawJSON: string;
+}
+
+interface JSON {
+    /**
+     * Converts a JavaScript Object Notation (JSON) string into an object.
+     * @param text A valid JSON string.
+     * @param reviver A function that transforms the results. This function is called for each member of the object.
+     * If a member contains nested objects, the nested objects are transformed before the parent object is.
+     * The context object has a `source` property when the property is unmodified and its value is primitive.
+     * @throws {SyntaxError} If `text` is not valid JSON.
+     */
+    parse(text: string, reviver: (this: any, key: string, value: any, context: { source?: string }) => any): any;
+
+    /**
+     * Creates a frozen object containing JSON text for a primitive value.
+     * @param text Valid JSON text representing a string, number, boolean, or null value.
+     * @throws {SyntaxError} If `text` is not valid JSON text for a primitive value.
+     */
+    rawJSON(text: string): RawJSON;
+
+    /**
+     * Indicates whether the provided value is an object returned by `JSON.rawJSON()`.
+     * @param value The value to test.
+     */
+    isRawJSON(value: unknown): value is RawJSON;
+}

tsc/internal/bundled/libs/lib.es2026.math.d.ts

@@ -0,0 +1,27 @@
+/*! *****************************************************************************
+Copyright (c) Microsoft Corporation. All rights reserved.
+Licensed under the Apache License, Version 2.0 (the "License"); you may not use
+this file except in compliance with the License. You may obtain a copy of the
+License at http://www.apache.org/licenses/LICENSE-2.0
+
+THIS CODE IS PROVIDED ON AN *AS IS* BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, EITHER EXPRESS OR IMPLIED, INCLUDING WITHOUT LIMITATION ANY IMPLIED
+WARRANTIES OR CONDITIONS OF TITLE, FITNESS FOR A PARTICULAR PURPOSE,
+MERCHANTABILITY OR NON-INFRINGEMENT.
+
+See the Apache Version 2.0 License for specific language governing permissions
+and limitations under the License.
+***************************************************************************** */
+
+
+/// <reference lib="es2015.iterable" />
+
+interface Math {
+    /**
+     * Sums the values in an iterable while minimizing loss of precision.
+     * @param items An iterable of numbers to sum.
+     * @throws {TypeError} If `items` is not iterable or contains a value that is not a number.
+     * @throws {RangeError} If `items` contains 2^53 or more values.
+     */
+    sumPrecise(items: Iterable<number>): number;
+}