| <body> |
| <p>Test that destroying a document doesn't cause a crash when executing MessageChannel constructor saved from its Window object.</p> |
| <pre id=log></pre> |
| <script> |
| function gc() |
| { |
| if (window.GCController) |
| return GCController.collect(); |
| |
| for (var i = 0; i < 10000; i++) { // > force garbage collection (FF requires about 9K allocations before a collect) |
| var s = new String("abc"); |
| } |
| } |
| |
| function log(message) |
| { |
| document.getElementById("log").innerHTML += message + "<br>"; |
| } |
| |
| if (window.testRunner) { |
| testRunner.dumpAsText(); |
| testRunner.waitUntilDone(); |
| } |
| |
| var constructor; |
| |
| function test() |
| { |
| constructor = window.frames[0].MessageChannel; |
| |
| var frameElement = document.getElementsByTagName("iframe")[0]; |
| frameElement.parentNode.removeChild(frameElement); |
| frameElement = null; |
| |
| gc(); |
| setTimeout(test2, 10); |
| } |
| |
| function test2() |
| { |
| gc(); |
| try { |
| new constructor; |
| } catch (ex) { |
| } |
| |
| location.href='resources/copy-of-message-port-context-destroyed.html'; |
| } |
| |
| </script> |
| <iframe src="resources/message-port-iframe.html" onload="test()"></iframe> |
| </body> |
