| /* -*- indent-tabs-mode: nil; js-indent-level: 2 -*- */ |
| /* This Source Code Form is subject to the terms of the Mozilla Public |
| * License, v. 2.0. If a copy of the MPL was not distributed with this |
| * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ |
| |
| //----------------------------------------------------------------------------- |
| var BUGNUMBER = "(none)"; |
| var summary = "gen.throw(ex) returns ex for an exhausted gen"; |
| var actual, expect; |
| |
| printBugNumber(BUGNUMBER); |
| printStatus(summary); |
| |
| /************** |
| * BEGIN TEST * |
| **************/ |
| |
| function gen() |
| { |
| var x = 5, y = 7; |
| var z = x + y; |
| yield z; |
| } |
| |
| var failed = false; |
| var it = gen(); |
| |
| try |
| { |
| // throw works even on newly-initialized generators |
| var thrown = "foobar"; |
| var doThrow = true; |
| try |
| { |
| it.throw(thrown); |
| } |
| catch (e) |
| { |
| if (e === thrown) |
| doThrow = false; |
| } |
| if (doThrow) |
| throw "it.throw(\"" + thrown + "\") failed"; |
| |
| // you can throw stuff at a generator which hasn't |
| // been used yet forever |
| thrown = "baz"; |
| doThrow = true; |
| try |
| { |
| it.throw(thrown); |
| } |
| catch (e) |
| { |
| if (e === thrown) |
| doThrow = false; |
| } |
| if (doThrow) |
| throw "it.throw(\"" + thrown + "\") failed"; |
| |
| // don't execute a yield -- the uncaught exception |
| // exhausted the generator |
| var stopPassed = false; |
| try |
| { |
| it.next(); |
| } |
| catch (e) |
| { |
| if (e === StopIteration) |
| stopPassed = true; |
| } |
| |
| if (!stopPassed) |
| throw "missing or incorrect StopIteration"; |
| } |
| catch (e) |
| { |
| failed = e; |
| } |
| |
| expect = false; |
| actual = failed; |
| |
| reportCompare(expect, actual, summary); |