Add ESNext float16 features and fix TypedArrays of BigInt types (#60151)

Author: petamoriken

src/compiler/commandLineParser.ts

@@ -248,6 +248,7 @@ const libEntries: [string, string][] = [
     ["esnext.string", "lib.es2024.string.d.ts"],
     ["esnext.iterator", "lib.esnext.iterator.d.ts"],
     ["esnext.promise", "lib.esnext.promise.d.ts"],
+    ["esnext.float16", "lib.esnext.float16.d.ts"],
     ["decorators", "lib.decorators.d.ts"],
     ["decorators.legacy", "lib.decorators.legacy.d.ts"],
 ];

src/compiler/utilities.ts

@@ -1562,6 +1562,9 @@ export const getScriptTargetFeatures: () => ScriptTargetFeatures = /* @__PURE__
                 "fround",
                 "cbrt",
             ],
+            esnext: [
+                "f16round",
+            ],
         })),
         Map: new Map(Object.entries({
             es2015: [
@@ -1731,6 +1734,10 @@ export const getScriptTargetFeatures: () => ScriptTargetFeatures = /* @__PURE__
                 "getBigInt64",
                 "getBigUint64",
             ],
+            esnext: [
+                "setFloat16",
+                "getFloat16",
+            ],
         })),
         BigInt: new Map(Object.entries({
             es2020: emptyArray,
@@ -1833,6 +1840,9 @@ export const getScriptTargetFeatures: () => ScriptTargetFeatures = /* @__PURE__
                 "with",
             ],
         })),
+        Float16Array: new Map(Object.entries({
+            esnext: emptyArray,
+        })),
         Float32Array: new Map(Object.entries({
             es2022: [
                 "at",

src/lib/es2015.iterable.d.ts

@@ -178,10 +178,12 @@ interface SetIterator<T> extends IteratorObject<T, BuiltinIteratorReturn, unknow
 interface Set<T> {
     /** Iterates over values in the set. */
     [Symbol.iterator](): SetIterator<T>;
+
     /**
      * Returns an iterable of [v,v] pairs for every value `v` in the set.
      */
     entries(): SetIterator<[T, T]>;
+
     /**
      * Despite its name, returns an iterable of the values in the set.
      */
@@ -254,14 +256,17 @@ interface String {
 
 interface Int8Array<TArrayBuffer extends ArrayBufferLike> {
     [Symbol.iterator](): ArrayIterator<number>;
+
     /**
      * Returns an array of key, value pairs for every entry in the array
      */
     entries(): ArrayIterator<[number, number]>;
+
     /**
      * Returns an list of keys in the array
      */
     keys(): ArrayIterator<number>;
+
     /**
      * Returns an list of values in the array
      */
@@ -273,30 +278,32 @@ interface Int8ArrayConstructor {
 
     /**
      * Creates an array from an array-like or iterable object.
-     * @param arrayLike An array-like or 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.
+     * @param elements An iterable object to convert to an array.
      */
-    from(arrayLike: Iterable<number>): Int8Array<ArrayBuffer>;
+    from(elements: Iterable<number>): Int8Array<ArrayBuffer>;
+
     /**
      * Creates an array from an array-like or iterable object.
-     * @param arrayLike An array-like or iterable object to convert to an array.
+     * @param elements 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>(arrayLike: Iterable<T>, mapfn?: (v: T, k: number) => number, thisArg?: any): Int8Array<ArrayBuffer>;
+    from<T>(elements: Iterable<T>, mapfn?: (v: T, k: number) => number, thisArg?: any): Int8Array<ArrayBuffer>;
 }
 
 interface Uint8Array<TArrayBuffer extends ArrayBufferLike> {
     [Symbol.iterator](): ArrayIterator<number>;
+
     /**
      * Returns an array of key, value pairs for every entry in the array
      */
     entries(): ArrayIterator<[number, number]>;
+
     /**
      * Returns an list of keys in the array
      */
     keys(): ArrayIterator<number>;
+
     /**
      * Returns an list of values in the array
      */
@@ -308,22 +315,22 @@ interface Uint8ArrayConstructor {
 
     /**
      * Creates an array from an array-like or iterable object.
-     * @param arrayLike An array-like or 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.
+     * @param elements An iterable object to convert to an array.
      */
-    from(arrayLike: Iterable<number>): Uint8Array<ArrayBuffer>;
+    from(elements: Iterable<number>): Uint8Array<ArrayBuffer>;
+
     /**
      * Creates an array from an array-like or iterable object.
-     * @param arrayLike An array-like or iterable object to convert to an array.
+     * @param elements 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>(arrayLike: Iterable<T>, mapfn?: (v: T, k: number) => number, thisArg?: any): Uint8Array<ArrayBuffer>;
+    from<T>(elements: Iterable<T>, mapfn?: (v: T, k: number) => number, thisArg?: any): Uint8Array<ArrayBuffer>;
 }
 
 interface Uint8ClampedArray<TArrayBuffer extends ArrayBufferLike> {
     [Symbol.iterator](): ArrayIterator<number>;
+
     /**
      * Returns an array of key, value pairs for every entry in the array
      */
@@ -345,18 +352,17 @@ interface Uint8ClampedArrayConstructor {
 
     /**
      * Creates an array from an array-like or iterable object.
-     * @param arrayLike An array-like or 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.
+     * @param elements An iterable object to convert to an array.
      */
-    from(arrayLike: Iterable<number>): Uint8ClampedArray<ArrayBuffer>;
+    from(elements: Iterable<number>): Uint8ClampedArray<ArrayBuffer>;
+
     /**
      * Creates an array from an array-like or iterable object.
-     * @param arrayLike An array-like or iterable object to convert to an array.
+     * @param elements 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>(arrayLike: Iterable<T>, mapfn?: (v: T, k: number) => number, thisArg?: any): Uint8ClampedArray<ArrayBuffer>;
+    from<T>(elements: Iterable<T>, mapfn?: (v: T, k: number) => number, thisArg?: any): Uint8ClampedArray<ArrayBuffer>;
 }
 
 interface Int16Array<TArrayBuffer extends ArrayBufferLike> {
@@ -382,30 +388,32 @@ interface Int16ArrayConstructor {
 
     /**
      * Creates an array from an array-like or iterable object.
-     * @param arrayLike An array-like or 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.
+     * @param elements An iterable object to convert to an array.
      */
-    from(arrayLike: Iterable<number>): Int16Array<ArrayBuffer>;
+    from(elements: Iterable<number>): Int16Array<ArrayBuffer>;
+
     /**
      * Creates an array from an array-like or iterable object.
-     * @param arrayLike An array-like or iterable object to convert to an array.
+     * @param elements 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>(arrayLike: Iterable<T>, mapfn?: (v: T, k: number) => number, thisArg?: any): Int16Array<ArrayBuffer>;
+    from<T>(elements: Iterable<T>, mapfn?: (v: T, k: number) => number, thisArg?: any): Int16Array<ArrayBuffer>;
 }
 
 interface Uint16Array<TArrayBuffer extends ArrayBufferLike> {
     [Symbol.iterator](): ArrayIterator<number>;
+
     /**
      * Returns an array of key, value pairs for every entry in the array
      */
     entries(): ArrayIterator<[number, number]>;
+
     /**
      * Returns an list of keys in the array
      */
     keys(): ArrayIterator<number>;
+
     /**
      * Returns an list of values in the array
      */
@@ -417,30 +425,32 @@ interface Uint16ArrayConstructor {
 
     /**
      * Creates an array from an array-like or iterable object.
-     * @param arrayLike An array-like or 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.
+     * @param elements An iterable object to convert to an array.
      */
-    from(arrayLike: Iterable<number>): Uint16Array<ArrayBuffer>;
+    from(elements: Iterable<number>): Uint16Array<ArrayBuffer>;
+
     /**
      * Creates an array from an array-like or iterable object.
-     * @param arrayLike An array-like or iterable object to convert to an array.
+     * @param elements 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>(arrayLike: Iterable<T>, mapfn?: (v: T, k: number) => number, thisArg?: any): Uint16Array<ArrayBuffer>;
+    from<T>(elements: Iterable<T>, mapfn?: (v: T, k: number) => number, thisArg?: any): Uint16Array<ArrayBuffer>;
 }
 
 interface Int32Array<TArrayBuffer extends ArrayBufferLike> {
     [Symbol.iterator](): ArrayIterator<number>;
+
     /**
      * Returns an array of key, value pairs for every entry in the array
      */
     entries(): ArrayIterator<[number, number]>;
+
     /**
      * Returns an list of keys in the array
      */
     keys(): ArrayIterator<number>;
+
     /**
      * Returns an list of values in the array
      */
@@ -452,30 +462,32 @@ interface Int32ArrayConstructor {
 
     /**
      * Creates an array from an array-like or iterable object.
-     * @param arrayLike An array-like or 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.
+     * @param elements An iterable object to convert to an array.
      */
-    from(arrayLike: Iterable<number>): Int32Array<ArrayBuffer>;
+    from(elements: Iterable<number>): Int32Array<ArrayBuffer>;
+
     /**
      * Creates an array from an array-like or iterable object.
-     * @param arrayLike An array-like or iterable object to convert to an array.
+     * @param elements 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>(arrayLike: Iterable<T>, mapfn?: (v: T, k: number) => number, thisArg?: any): Int32Array<ArrayBuffer>;
+    from<T>(elements: Iterable<T>, mapfn?: (v: T, k: number) => number, thisArg?: any): Int32Array<ArrayBuffer>;
 }
 
 interface Uint32Array<TArrayBuffer extends ArrayBufferLike> {
     [Symbol.iterator](): ArrayIterator<number>;
+
     /**
      * Returns an array of key, value pairs for every entry in the array
      */
     entries(): ArrayIterator<[number, number]>;
+
     /**
      * Returns an list of keys in the array
      */
     keys(): ArrayIterator<number>;
+
     /**
      * Returns an list of values in the array
      */
@@ -487,30 +499,32 @@ interface Uint32ArrayConstructor {
 
     /**
      * Creates an array from an array-like or iterable object.
-     * @param arrayLike An array-like or 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.
+     * @param elements An iterable object to convert to an array.
      */
-    from(arrayLike: Iterable<number>): Uint32Array<ArrayBuffer>;
+    from(elements: Iterable<number>): Uint32Array<ArrayBuffer>;
+
     /**
      * Creates an array from an array-like or iterable object.
-     * @param arrayLike An array-like or iterable object to convert to an array.
+     * @param elements 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>(arrayLike: Iterable<T>, mapfn?: (v: T, k: number) => number, thisArg?: any): Uint32Array<ArrayBuffer>;
+    from<T>(elements: Iterable<T>, mapfn?: (v: T, k: number) => number, thisArg?: any): Uint32Array<ArrayBuffer>;
 }
 
 interface Float32Array<TArrayBuffer extends ArrayBufferLike> {
     [Symbol.iterator](): ArrayIterator<number>;
+
     /**
      * Returns an array of key, value pairs for every entry in the array
      */
     entries(): ArrayIterator<[number, number]>;
+
     /**
      * Returns an list of keys in the array
      */
     keys(): ArrayIterator<number>;
+
     /**
      * Returns an list of values in the array
      */
@@ -522,30 +536,32 @@ interface Float32ArrayConstructor {
 
     /**
      * Creates an array from an array-like or iterable object.
-     * @param arrayLike An array-like or 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.
+     * @param elements An iterable object to convert to an array.
      */
-    from(arrayLike: Iterable<number>): Float32Array<ArrayBuffer>;
+    from(elements: Iterable<number>): Float32Array<ArrayBuffer>;
+
     /**
      * Creates an array from an array-like or iterable object.
-     * @param arrayLike An array-like or iterable object to convert to an array.
+     * @param elements 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>(arrayLike: Iterable<T>, mapfn?: (v: T, k: number) => number, thisArg?: any): Float32Array<ArrayBuffer>;
+    from<T>(elements: Iterable<T>, mapfn?: (v: T, k: number) => number, thisArg?: any): Float32Array<ArrayBuffer>;
 }
 
 interface Float64Array<TArrayBuffer extends ArrayBufferLike> {
     [Symbol.iterator](): ArrayIterator<number>;
+
     /**
      * Returns an array of key, value pairs for every entry in the array
      */
     entries(): ArrayIterator<[number, number]>;
+
     /**
      * Returns an list of keys in the array
      */
     keys(): ArrayIterator<number>;
+
     /**
      * Returns an list of values in the array
      */
@@ -557,16 +573,15 @@ interface Float64ArrayConstructor {
 
     /**
      * Creates an array from an array-like or iterable object.
-     * @param arrayLike An array-like or 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.
+     * @param elements An iterable object to convert to an array.
      */
-    from(arrayLike: Iterable<number>): Float64Array<ArrayBuffer>;
+    from(elements: Iterable<number>): Float64Array<ArrayBuffer>;
+
     /**
      * Creates an array from an array-like or iterable object.
-     * @param arrayLike An array-like or iterable object to convert to an array.
+     * @param elements 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>(arrayLike: Iterable<T>, mapfn?: (v: T, k: number) => number, thisArg?: any): Float64Array<ArrayBuffer>;
+    from<T>(elements: Iterable<T>, mapfn?: (v: T, k: number) => number, thisArg?: any): Float64Array<ArrayBuffer>;
 }