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     = "(none)";
michael@0: var summary = "Iterator with unreachable yield statement";
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: function gen()
michael@0: {
michael@0:   // this is still a generator even if yield can't
michael@0:   // be invoked, because yield is a syntactical
michael@0:   // part of the language
michael@0:   if (false)
michael@0:     yield "failed";
michael@0: }
michael@0: 
michael@0: var failed = false;
michael@0: try
michael@0: {
michael@0:   var it = gen();
michael@0:   if (it == undefined)
michael@0:     throw "gen() not recognized as generator";
michael@0: 
michael@0:   // no yields to execute
michael@0:   var stopPassed = false;
michael@0:   try
michael@0:   {
michael@0:     it.next();
michael@0:   }
michael@0:   catch (e)
michael@0:   {
michael@0:     if (e === StopIteration)
michael@0:       stopPassed = true;
michael@0:   }
michael@0: 
michael@0:   if (!stopPassed)
michael@0:     throw "incorrect or invalid StopIteration";
michael@0: }
michael@0: catch (e)
michael@0: {
michael@0:   failed = e;
michael@0: }
michael@0: 
michael@0: expect = false;
michael@0: actual = failed;
michael@0: 
michael@0: reportCompare(expect, actual, summary);