js/src/tests/test262/built-ins/Atomics/compareExchange/not-a-constructor.js

   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.
   4
   5 /*---
   6 esid: sec-ecmascript-standard-built-in-objects
   7 description: >
   8   Atomics.compareExchange does not implement [[Construct]], is not new-able
   9 info: |
  10   ECMAScript Function Objects
  11
  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.
  15
  16   sec-evaluatenew
  17
  18   ...
  19   7. If IsConstructor(constructor) is false, throw a TypeError exception.
  20   ...
  21 includes: [isConstructor.js]
  22 features: [Reflect.construct, Atomics, arrow-function, TypedArray, SharedArrayBuffer]
  23 ---*/
  24
  25 assert.sameValue(
  26   isConstructor(Atomics.compareExchange),
  27   false,
  28   'isConstructor(Atomics.compareExchange) must return false'
  29 );
  30
  31 assert.throws(TypeError, () => {
  32   new Atomics.compareExchange(new Int32Array(new SharedArrayBuffer(Int32Array.BYTES_PER_ELEMENT)));
  33 });
  34
  35
  36 reportCompare(0, 0);