js/tests/js1_7/geniter/nested-yield.js

   1 /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
   2 /* ***** BEGIN LICENSE BLOCK *****
   3  * Version: MPL 1.1/GPL 2.0/LGPL 2.1
   4  *
   5  * The contents of this file are subject to the Mozilla Public License Version
   6  * 1.1 (the "License"); you may not use this file except in compliance with
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  14  *
  15  * The Original Code is JavaScript Engine testing utilities.
  16  *
  17  * The Initial Developer of the Original Code is
  18  * Jeff Walden.
  19  * Portions created by the Initial Developer are Copyright (C) 2006
  20  * the Initial Developer. All Rights Reserved.
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  36  * ***** END LICENSE BLOCK ***** */
  37
  38 var gTestfile = 'nested-yield.js';
  39 //-----------------------------------------------------------------------------
  40 var BUGNUMBER     = "(none)";
  41 var summary = "YieldExpression is and contains an AssignmentExpression";
  42 var actual, expect;
  43
  44 printBugNumber(BUGNUMBER);
  45 printStatus(summary);
  46
  47 /**************
  48  * BEGIN TEST *
  49  **************/
  50
  51 var failed = false;
  52
  53 function gen()
  54 {
  55   yield (yield (yield 7));
  56 }
  57
  58 var it = gen();
  59
  60 try
  61 {
  62   if (it.next() != 7)
  63     throw "7 not yielded";
  64   if (it.send(17) != 17)
  65     throw "passed-in 17 not yielded";
  66   if (it.send(undefined) !== undefined)
  67     throw "should be able to yield undefined";
  68
  69   var stopPassed = false;
  70   try
  71   {
  72     it.next();
  73   }
  74   catch (e)
  75   {
  76     if (e === StopIteration)
  77       stopPassed = true;
  78   }
  79
  80   if (!stopPassed)
  81     throw "it: missing or incorrect StopIteration";
  82 }
  83 catch (e)
  84 {
  85   failed = e;
  86 }
  87
  88 expect = false;
  89 actual = failed;
  90
  91 reportCompare(expect, actual, summary);