tor-browser

The Tor Browser
git clone https://git.dasho.dev/tor-browser.git
Log | Files | Refs | README | LICENSE

iterator-next-result-value-attr.js (1035B)

      1 // Copyright (C) 2013 the V8 project authors. All rights reserved.
      2 // This code is governed by the BSD license found in the LICENSE file.
      3 /*---
      4 es6id: 13.6.4.13 S5.f
      5 description: >
      6    The `value` of iteration result objects should be retrieved using the Get
      7    abstract operation.
      8 features: [Symbol.iterator]
      9 ---*/
     10 
     11 var iterable = {};
     12 var i, firstIterResult;
     13 
     14 iterable[Symbol.iterator] = function() {
     15  var finalIterResult = { value: null, done: true };
     16  var nextIterResult = firstIterResult;
     17 
     18  return {
     19    next: function() {
     20      var iterResult = nextIterResult;
     21 
     22      nextIterResult = finalIterResult;
     23 
     24      return iterResult;
     25    }
     26  };
     27 };
     28 
     29 firstIterResult = { value: 45, done: false };
     30 i = 0;
     31 for (var x of iterable) {
     32  assert.sameValue(x, 45);
     33  i++;
     34 }
     35 assert.sameValue(i, 1);
     36 
     37 firstIterResult = { done: false };
     38 Object.defineProperty(firstIterResult, 'value', {
     39  get: function() {
     40    return 23;
     41  }
     42 });
     43 i = 0;
     44 for (var x of iterable) {
     45  assert.sameValue(x, 23);
     46  i++;
     47 }
     48 assert.sameValue(i, 1);
     49 
     50 reportCompare(0, 0);