The Tor Browser / file comparison
comparison: toolkit/modules/debug.js
toolkit/modules/debug.js
- branch
- TOR_BUG_3246
- changeset 7
- 129ffea94266
equal
deleted
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| -1:000000000000 | 0:a4d2d4038c29 |
|---|---|
| 1 /* vim:set ts=2 sw=2 sts=2 ci et: */ | |
| 2 /* -*- Mode: Java; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ | |
| 3 | |
| 4 /* This Source Code Form is subject to the terms of the Mozilla Public | |
| 5 * License, v. 2.0. If a copy of the MPL was not distributed with this | |
| 6 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ | |
| 7 | |
| 8 // This file contains functions that are useful for debugging purposes from | |
| 9 // within JavaScript code. | |
| 10 | |
| 11 this.EXPORTED_SYMBOLS = ["NS_ASSERT"]; | |
| 12 | |
| 13 var gTraceOnAssert = true; | |
| 14 | |
| 15 /** | |
| 16 * This function provides a simple assertion function for JavaScript. | |
| 17 * If the condition is true, this function will do nothing. If the | |
| 18 * condition is false, then the message will be printed to the console | |
| 19 * and an alert will appear showing a stack trace, so that the (alpha | |
| 20 * or nightly) user can file a bug containing it. For future enhancements, | |
| 21 * see bugs 330077 and 330078. | |
| 22 * | |
| 23 * To suppress the dialogs, you can run with the environment variable | |
| 24 * XUL_ASSERT_PROMPT set to 0 (if unset, this defaults to 1). | |
| 25 * | |
| 26 * @param condition represents the condition that we're asserting to be | |
| 27 * true when we call this function--should be | |
| 28 * something that can be evaluated as a boolean. | |
| 29 * @param message a string to be displayed upon failure of the assertion | |
| 30 */ | |
| 31 | |
| 32 this.NS_ASSERT = function NS_ASSERT(condition, message) { | |
| 33 if (condition) | |
| 34 return; | |
| 35 | |
| 36 var releaseBuild = true; | |
| 37 var defB = Components.classes["@mozilla.org/preferences-service;1"] | |
| 38 .getService(Components.interfaces.nsIPrefService) | |
| 39 .getDefaultBranch(null); | |
| 40 try { | |
| 41 switch (defB.getCharPref("app.update.channel")) { | |
| 42 case "nightly": | |
| 43 case "aurora": | |
| 44 case "alpha": | |
| 45 case "beta": | |
| 46 case "default": | |
| 47 releaseBuild = false; | |
| 48 } | |
| 49 } catch(ex) {} | |
| 50 | |
| 51 var caller = arguments.callee.caller; | |
| 52 var assertionText = "ASSERT: " + message + "\n"; | |
| 53 | |
| 54 // Report the error to the console | |
| 55 Components.utils.reportError(assertionText); | |
| 56 | |
| 57 if (releaseBuild) { | |
| 58 return; | |
| 59 } | |
| 60 | |
| 61 // dump the stack to stdout too in non-release builds | |
| 62 var stackText = ""; | |
| 63 if (gTraceOnAssert) { | |
| 64 stackText = "Stack Trace: \n"; | |
| 65 var count = 0; | |
| 66 while (caller) { | |
| 67 stackText += count++ + ":" + caller.name + "("; | |
| 68 for (var i = 0; i < caller.arguments.length; ++i) { | |
| 69 var arg = caller.arguments[i]; | |
| 70 stackText += arg; | |
| 71 if (i < caller.arguments.length - 1) | |
| 72 stackText += ","; | |
| 73 } | |
| 74 stackText += ")\n"; | |
| 75 caller = caller.arguments.callee.caller; | |
| 76 } | |
| 77 } | |
| 78 | |
| 79 dump(assertionText + stackText); | |
| 80 } |
