tor-browser

The Tor Browser
git clone https://git.dasho.dev/tor-browser.git
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iter-value-specified.js (998B)

      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: 25.2
      5 description: >
      6    When the `next` method of a generator-produced iterable is invoked without
      7    an argument, the corresponding `yield` expression should be evaluated as
      8    `undefined`.
      9 features: [generators]
     10 ---*/
     11 
     12 function* g() { actual = yield; }
     13 var expected = {};
     14 var iter = g();
     15 var actual, result;
     16 
     17 result = iter.next();
     18 assert.sameValue(result.value, undefined, 'First result `value`');
     19 assert.sameValue(result.done, false, 'First result `done` flag');
     20 assert.sameValue(
     21  actual, undefined, 'Value of `yield` expression (prior to continuation)'
     22 );
     23 
     24 result = iter.next(expected);
     25 assert.sameValue(result.value, undefined, 'Second result `value`');
     26 assert.sameValue(result.done, true, 'Second result `done` flag');
     27 assert.sameValue(
     28  actual, expected, 'Value of `yield` expression (following continuation)'
     29 );
     30 
     31 reportCompare(0, 0);