michael@0: /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
michael@0: /* This Source Code Form is subject to the terms of the Mozilla Public
michael@0:  * License, v. 2.0. If a copy of the MPL was not distributed with this
michael@0:  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
michael@0: 
michael@0: //-----------------------------------------------------------------------------
michael@0: var BUGNUMBER     = "346582";
michael@0: var summary = "Basic support for iterable objects and for-each";
michael@0: var actual, expect;
michael@0: 
michael@0: printBugNumber(BUGNUMBER);
michael@0: printStatus(summary);
michael@0: 
michael@0: /**************
michael@0:  * BEGIN TEST *
michael@0:  **************/
michael@0: 
michael@0: var failed = false;
michael@0: 
michael@0: var iterable = { persistedProp: 17 };
michael@0: 
michael@0: function Array_equals(a, b)
michael@0: {
michael@0:   if (!(a instanceof Array) || !(b instanceof Array))
michael@0:     throw new Error("Arguments not both of type Array");
michael@0:   if (a.length != b.length)
michael@0:     return false;
michael@0:   for (var i = 0, sz = a.length; i < sz; i++)
michael@0:     if (a[i] !== b[i])
michael@0:       return false;
michael@0:   return true;
michael@0: }
michael@0: 
michael@0: try
michael@0: {
michael@0:   // nothing unusual so far -- verify basic properties
michael@0:   for (var i in iterable)
michael@0:   {
michael@0:     if (i != "persistedProp")
michael@0:       throw "no persistedProp!";
michael@0:     if (iterable[i] != 17)
michael@0:       throw "iterable[\"persistedProp\"] == 17";
michael@0:   }
michael@0: 
michael@0:   var keys = ["foo", "bar", "baz"];
michael@0:   var vals = [6, 5, 14];
michael@0: 
michael@0:   iterable.__iterator__ =
michael@0:     function(keysOnly)
michael@0:     {
michael@0:       var gen =
michael@0:       function()
michael@0:       {
michael@0: 	for (var i = 0; i < keys.length; i++)
michael@0: 	{
michael@0: 	  if (keysOnly)
michael@0: 	    yield keys[i];
michael@0: 	  else
michael@0: 	    yield [keys[i], vals[i]];
michael@0: 	}
michael@0:       };
michael@0:       return gen();
michael@0:     };
michael@0: 
michael@0:   // for each sets keysOnly==false
michael@0:   var index = 0;
michael@0:   for each (var v in iterable)
michael@0:   {
michael@0:     if (!Array_equals(v, [keys[index], vals[index]]))
michael@0:       throw "for-each iteration failed on index=" + index + "!";
michael@0:     index++;
michael@0:   }
michael@0:   if (index != keys.length)
michael@0:     throw "not everything iterated!  index=" + index +
michael@0:       ", keys.length=" + keys.length;
michael@0: 
michael@0:   if (iterable.persistedProp != 17)
michael@0:     throw "iterable.persistedProp not persisted!";
michael@0: }
michael@0: catch (e)
michael@0: {
michael@0:   failed = e;
michael@0: }
michael@0: 
michael@0: 
michael@0: 
michael@0: expect = false;
michael@0: actual = failed;
michael@0: 
michael@0: reportCompare(expect, actual, summary);