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 = "gen.throw(ex) returns ex for an exhausted gen";
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:   var x = 5, y = 7;
michael@0:   var z = x + y;
michael@0:   yield z;
michael@0: }
michael@0: 
michael@0: var failed = false;
michael@0: var it = gen();
michael@0: 
michael@0: try
michael@0: {
michael@0:   // throw works even on newly-initialized generators
michael@0:   var thrown = "foobar";
michael@0:   var doThrow = true;
michael@0:   try
michael@0:   {
michael@0:     it.throw(thrown);
michael@0:   }
michael@0:   catch (e)
michael@0:   {
michael@0:     if (e === thrown)
michael@0:       doThrow = false;
michael@0:   }
michael@0:   if (doThrow)
michael@0:     throw "it.throw(\"" + thrown + "\") failed";
michael@0: 
michael@0:   // you can throw stuff at a generator which hasn't
michael@0:   // been used yet forever
michael@0:   thrown = "baz";
michael@0:   doThrow = true;
michael@0:   try
michael@0:   {
michael@0:     it.throw(thrown);
michael@0:   }
michael@0:   catch (e)
michael@0:   {
michael@0:     if (e === thrown)
michael@0:       doThrow = false;
michael@0:   }
michael@0:   if (doThrow)
michael@0:     throw "it.throw(\"" + thrown + "\") failed";
michael@0: 
michael@0:   // don't execute a yield -- the uncaught exception
michael@0:   // exhausted the generator
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 "missing or incorrect 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);