tor-browser

The Tor Browser
git clone https://git.dasho.dev/tor-browser.git
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source-own-prop-keys-error.js (806B)

      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 es6id: 19.1.2.1
      5 description: Invoked with a source whose own property keys cannot be retrieved
      6 info: |
      7    [...]
      8    5. For each element nextSource of sources, in ascending index order,
      9       a. If nextSource is undefined or null, let keys be an empty List.
     10       b. Else,
     11          i. Let from be ToObject(nextSource).
     12          ii. ReturnIfAbrupt(from).
     13          iii. Let keys be from.[[OwnPropertyKeys]]().
     14          iv. ReturnIfAbrupt(keys).
     15 features: [Proxy]
     16 ---*/
     17 
     18 var source = new Proxy({}, {
     19  ownKeys: function() {
     20    throw new Test262Error();
     21  }
     22 });
     23 
     24 assert.throws(Test262Error, function() {
     25  Object.assign({}, source);
     26 });
     27 
     28 reportCompare(0, 0);