source-non-enum.js

Enable keyboard shortcuts

// Copyright (C) 2015 the V8 project authors. All rights reserved.

// This code is governed by the BSD license found in the LICENSE file.

/*---

es6id: 19.1.2.1

description: Does not assign non-enumerable source properties

info: |

    [...]

    5. For each element nextSource of sources, in ascending index order,

       c. Repeat for each element nextKey of keys in List order,

          i. Let desc be from.[[GetOwnProperty]](nextKey).

          ii. ReturnIfAbrupt(desc).

          iii. if desc is not undefined and desc.[[Enumerable]] is true, then

---*/

var target = {};

var source = Object.defineProperty({}, 'attr', {

  value: 1,

  enumerable: false

});

var result;

result = Object.assign(target, source);

assert(

  !Object.prototype.hasOwnProperty.call(target, 'attr'),

  "Non-enumerable property 'attr' does not get copied to target"

);

assert.sameValue(result, target);

reportCompare(0, 0);