tor-browser

The Tor Browser
git clone https://git.dasho.dev/tor-browser.git
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symbol-hasinstance-not-callable.js (758B)

      1 // Copyright (C) 2015 the V8 project authors. All rights reserved.
      2 // This code is governed by the BSD license found in the LICENSE file.
      3 
      4 /*---
      5 es6id: 12.9.4
      6 description: >
      7    Error thrown when constructor's @@hasInstance property is defined but not callable
      8 info: |
      9    1. If Type(C) is not Object, throw a TypeError exception.
     10    2. Let instOfHandler be GetMethod(C,@@hasInstance).
     11    3. ReturnIfAbrupt(instOfHandler).
     12    4. If instOfHandler is not undefined, then
     13       a. Return ToBoolean(Call(instOfHandler, C, «O»)).
     14    5. If IsCallable(C) is false, throw a TypeError exception.
     15 features: [Symbol.hasInstance]
     16 ---*/
     17 
     18 var F = {};
     19 
     20 F[Symbol.hasInstance] = null;
     21 
     22 assert.throws(TypeError, function() {
     23  0 instanceof F;
     24 });
     25 
     26 reportCompare(0, 0);