The Tor Browser / file diff

     1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/js/src/tests/js1_7/geniter/throw-forever.js	Wed Dec 31 06:09:35 2014 +0100
     1.3 @@ -0,0 +1,85 @@
     1.4 +/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
     1.5 +/* This Source Code Form is subject to the terms of the Mozilla Public
     1.6 + * License, v. 2.0. If a copy of the MPL was not distributed with this
     1.7 + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
     1.8 +
     1.9 +//-----------------------------------------------------------------------------
    1.10 +var BUGNUMBER     = "(none)";
    1.11 +var summary = "gen.throw(ex) returns ex for an exhausted gen";
    1.12 +var actual, expect;
    1.13 +
    1.14 +printBugNumber(BUGNUMBER);
    1.15 +printStatus(summary);
    1.16 +
    1.17 +/**************
    1.18 + * BEGIN TEST *
    1.19 + **************/
    1.20 +
    1.21 +function gen()
    1.22 +{
    1.23 +  var x = 5, y = 7;
    1.24 +  var z = x + y;
    1.25 +  yield z;
    1.26 +}
    1.27 +
    1.28 +var failed = false;
    1.29 +var it = gen();
    1.30 +
    1.31 +try
    1.32 +{
    1.33 +  // throw works even on newly-initialized generators
    1.34 +  var thrown = "foobar";
    1.35 +  var doThrow = true;
    1.36 +  try
    1.37 +  {
    1.38 +    it.throw(thrown);
    1.39 +  }
    1.40 +  catch (e)
    1.41 +  {
    1.42 +    if (e === thrown)
    1.43 +      doThrow = false;
    1.44 +  }
    1.45 +  if (doThrow)
    1.46 +    throw "it.throw(\"" + thrown + "\") failed";
    1.47 +
    1.48 +  // you can throw stuff at a generator which hasn't
    1.49 +  // been used yet forever
    1.50 +  thrown = "baz";
    1.51 +  doThrow = true;
    1.52 +  try
    1.53 +  {
    1.54 +    it.throw(thrown);
    1.55 +  }
    1.56 +  catch (e)
    1.57 +  {
    1.58 +    if (e === thrown)
    1.59 +      doThrow = false;
    1.60 +  }
    1.61 +  if (doThrow)
    1.62 +    throw "it.throw(\"" + thrown + "\") failed";
    1.63 +
    1.64 +  // don't execute a yield -- the uncaught exception
    1.65 +  // exhausted the generator
    1.66 +  var stopPassed = false;
    1.67 +  try
    1.68 +  {
    1.69 +    it.next();
    1.70 +  }
    1.71 +  catch (e)
    1.72 +  {
    1.73 +    if (e === StopIteration)
    1.74 +      stopPassed = true;
    1.75 +  }
    1.76 +
    1.77 +  if (!stopPassed)
    1.78 +    throw "missing or incorrect StopIteration";
    1.79 +}
    1.80 +catch (e)
    1.81 +{
    1.82 +  failed = e;
    1.83 +}
    1.84 +
    1.85 +expect = false;
    1.86 +actual = failed;
    1.87 +
    1.88 +reportCompare(expect, actual, summary);