yield-as-yield-operand.js

Enable keyboard shortcuts

// Copyright (C) 2013 the V8 project authors. All rights reserved.

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

/*---

description: >

    `yield` expressions may be used as the right-hand-side of other `yield`

    expressions.

es6id: 14.4

features: [generators]

---*/

var iter, result;

var g = function*() {

  yield yield 1;

};

iter = g();

result = iter.next();

assert.sameValue(result.value, 1, 'First result `value`');

assert.sameValue(result.done, false, 'First result `done` flag');

result = iter.next();

assert.sameValue(result.value, undefined, 'Second result `value`');

assert.sameValue(result.done, false, 'Second result `done` flag');

result = iter.next();

assert.sameValue(result.value, undefined, 'Third result `value`');

assert.sameValue(result.done, true, 'Thid result `done` flag');

reportCompare(0, 0);