| // Copyright (C) 2020 Rick Waldron. All rights reserved. |
| // This code is governed by the BSD license found in the LICENSE file. |
| |
| /*--- |
| esid: sec-ecmascript-standard-built-in-objects |
| description: > |
| Atomics.exchange does not implement [[Construct]], is not new-able |
| info: | |
| ECMAScript Function Objects |
| |
| Built-in function objects that are not identified as constructors do not |
| implement the [[Construct]] internal method unless otherwise specified in |
| the description of a particular function. |
| |
| sec-evaluatenew |
| |
| ... |
| 7. If IsConstructor(constructor) is false, throw a TypeError exception. |
| ... |
| includes: [isConstructor.js] |
| features: [Reflect.construct, Atomics, arrow-function, TypedArray, SharedArrayBuffer] |
| ---*/ |
| |
| assert.sameValue(isConstructor(Atomics.exchange), false, 'isConstructor(Atomics.exchange) must return false'); |
| |
| assert.throws(TypeError, () => { |
| new Atomics.exchange(new Int32Array(new SharedArrayBuffer(Int32Array.BYTES_PER_ELEMENT))); |
| }, '`new Atomics.exchange(new Int32Array(new SharedArrayBuffer(Int32Array.BYTES_PER_ELEMENT)))` throws TypeError'); |
| |