1 // |reftest| skip-if(!this.hasOwnProperty('Atomics')||!this.hasOwnProperty('SharedArrayBuffer')||(this.hasOwnProperty('getBuildConfiguration')&&getBuildConfiguration('arm64-simulator'))) -- Atomics,SharedArrayBuffer is not enabled unconditionally, ARM64 Simulator cannot emulate atomics
2 // Copyright (C) 2020 Rick Waldron. All rights reserved.
3 // This code is governed by the BSD license found in the LICENSE file.
6 esid: sec-ecmascript-standard-built-in-objects
8 Atomics.isLockFree does not implement [[Construct]], is not new-able
10 ECMAScript Function Objects
12 Built-in function objects that are not identified as constructors do not
13 implement the [[Construct]] internal method unless otherwise specified in
14 the description of a particular function.
19 7. If IsConstructor(constructor) is false, throw a TypeError exception.
21 includes: [isConstructor.js]
22 features: [Reflect.construct, Atomics, arrow-function, TypedArray, SharedArrayBuffer]
25 assert.sameValue(isConstructor(Atomics.isLockFree), false, 'isConstructor(Atomics.isLockFree) must return false');
27 assert.throws(TypeError, () => {
28 new Atomics.isLockFree(new Int32Array(new SharedArrayBuffer(Int32Array.BYTES_PER_ELEMENT)));
29 }, '`new Atomics.isLockFree(new Int32Array(new SharedArrayBuffer(Int32Array.BYTES_PER_ELEMENT)))` throws TypeError');