js/src/tests/js1_7/geniter/yield-undefined.js

Wed, 31 Dec 2014 06:09:35 +0100

author
Michael Schloh von Bennewitz <michael@schloh.com>
date
Wed, 31 Dec 2014 06:09:35 +0100
changeset 0
6474c204b198
permissions
-rw-r--r--

Cloned upstream origin tor-browser at tor-browser-31.3.0esr-4.5-1-build1
revision ID fc1c9ff7c1b2defdbc039f12214767608f46423f for hacking purpose.

michael@0 1 /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
michael@0 2 /* This Source Code Form is subject to the terms of the Mozilla Public
michael@0 3 * License, v. 2.0. If a copy of the MPL was not distributed with this
michael@0 4 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
michael@0 5
michael@0 6 //-----------------------------------------------------------------------------
michael@0 7 // Note that this syntax isn't in the most recently posted ES4 TG1 wiki export,
michael@0 8 // either in the specification parts or in the grammar, so this test might be
michael@0 9 // Spidermonkey-specific.
michael@0 10 var BUGNUMBER = "(none)";
michael@0 11 var summary = "|yield;| is equivalent to |yield undefined;| ";
michael@0 12 var actual, expect;
michael@0 13
michael@0 14 printBugNumber(BUGNUMBER);
michael@0 15 printStatus(summary);
michael@0 16
michael@0 17 /**************
michael@0 18 * BEGIN TEST *
michael@0 19 **************/
michael@0 20
michael@0 21 var failed = false;
michael@0 22
michael@0 23 function gen()
michael@0 24 {
michael@0 25 yield 7;
michael@0 26 yield;
michael@0 27 yield 3;
michael@0 28 }
michael@0 29
michael@0 30 var it = gen();
michael@0 31
michael@0 32 try
michael@0 33 {
michael@0 34 if (it.next() != 7)
michael@0 35 throw "7 not yielded";
michael@0 36 if (it.next() !== undefined)
michael@0 37 throw "|yield;| should be equivalent to |yield undefined;|";
michael@0 38 if (it.next() != 3)
michael@0 39 throw "3 not yielded";
michael@0 40
michael@0 41 var stopPassed = false;
michael@0 42 try
michael@0 43 {
michael@0 44 it.next();
michael@0 45 }
michael@0 46 catch (e)
michael@0 47 {
michael@0 48 if (e === StopIteration)
michael@0 49 stopPassed = true;
michael@0 50 }
michael@0 51
michael@0 52 if (!stopPassed)
michael@0 53 throw "it: missing or incorrect StopIteration";
michael@0 54 }
michael@0 55 catch (e)
michael@0 56 {
michael@0 57 failed = e;
michael@0 58 }
michael@0 59
michael@0 60 expect = false;
michael@0 61 actual = failed;
michael@0 62
michael@0 63 reportCompare(expect, actual, summary);

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