The Tor Browser / file comparison
comparison: dom/workers/test/recursion_worker.js
dom/workers/test/recursion_worker.js
- branch
- TOR_BUG_9701
- changeset 14
- 925c144e1f1f
equal
deleted
inserted
replaced
| -1:000000000000 | 0:96edb1199120 |
|---|---|
| 1 /** | |
| 2 * Any copyright is dedicated to the Public Domain. | |
| 3 * http://creativecommons.org/publicdomain/zero/1.0/ | |
| 4 */ | |
| 5 | |
| 6 // This function should never run on a too much recursion error. | |
| 7 onerror = function(event) { | |
| 8 postMessage(event.message); | |
| 9 }; | |
| 10 | |
| 11 // Pure JS recursion | |
| 12 function recurse() { | |
| 13 recurse(); | |
| 14 } | |
| 15 | |
| 16 // JS -> C++ -> JS -> C++ recursion | |
| 17 function recurse2() { | |
| 18 var xhr = new XMLHttpRequest(); | |
| 19 xhr.onreadystatechange = function() { | |
| 20 xhr.open("GET", "nonexistent.file"); | |
| 21 } | |
| 22 xhr.open("GET", "nonexistent.file"); | |
| 23 } | |
| 24 | |
| 25 var messageCount = 0; | |
| 26 onmessage = function(event) { | |
| 27 switch (++messageCount) { | |
| 28 case 2: | |
| 29 recurse2(); | |
| 30 | |
| 31 // An exception thrown from an event handler like xhr.onreadystatechange | |
| 32 // should not leave an exception pending in the code that generated the | |
| 33 // event. | |
| 34 postMessage("Done"); | |
| 35 return; | |
| 36 | |
| 37 case 1: | |
| 38 recurse(); | |
| 39 throw "Exception should have prevented us from getting here!"; | |
| 40 | |
| 41 default: | |
| 42 throw "Weird number of messages: " + messageCount; | |
| 43 } | |
| 44 | |
| 45 throw "Impossible to get here!"; | |
| 46 } |
