tor-browser

The Tor Browser
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not-a-constructor.js (885B)

      1 // Copyright (C) 2020 Rick Waldron. All rights reserved.
      2 // This code is governed by the BSD license found in the LICENSE file.
      3 /*---
      4 esid: sec-ecmascript-standard-built-in-objects
      5 description: >
      6  BigInt.asIntN does not implement [[Construct]], is not new-able
      7 info: |
      8  ECMAScript Function Objects
      9 
     10  Built-in function objects that are not identified as constructors do not
     11  implement the [[Construct]] internal method unless otherwise specified in
     12  the description of a particular function.
     13 
     14  sec-evaluatenew
     15 
     16  ...
     17  7. If IsConstructor(constructor) is false, throw a TypeError exception.
     18  ...
     19 includes: [isConstructor.js]
     20 features: [Reflect.construct, BigInt, arrow-function]
     21 ---*/
     22 assert.sameValue(isConstructor(BigInt.asIntN), false, 'isConstructor(BigInt.asIntN) must return false');
     23 
     24 assert.throws(TypeError, () => {
     25  new BigInt.asIntN(64, 1n);
     26 });
     27 
     28 reportCompare(0, 0);