Wed, 31 Dec 2014 07:53:36 +0100
Correct small whitespace inconsistency, lost while renaming variables.
michael@0 | 1 | /* This Source Code Form is subject to the terms of the Mozilla Public |
michael@0 | 2 | * License, v. 2.0. If a copy of the MPL was not distributed with this |
michael@0 | 3 | * file, you can obtain one at http://mozilla.org/MPL/2.0/. */ |
michael@0 | 4 | |
michael@0 | 5 | var EXPORTED_SYMBOLS = ['findCallerFrame']; |
michael@0 | 6 | |
michael@0 | 7 | |
michael@0 | 8 | /** |
michael@0 | 9 | * @namespace Defines utility methods for handling stack frames |
michael@0 | 10 | */ |
michael@0 | 11 | |
michael@0 | 12 | /** |
michael@0 | 13 | * Find the frame to use for logging the test result. If a start frame has |
michael@0 | 14 | * been specified, we walk down the stack until a frame with the same filename |
michael@0 | 15 | * as the start frame has been found. The next file in the stack will be the |
michael@0 | 16 | * frame to use for logging the result. |
michael@0 | 17 | * |
michael@0 | 18 | * @memberOf stack |
michael@0 | 19 | * @param {Object} [aStartFrame=Components.stack] Frame to start from walking up the stack. |
michael@0 | 20 | * @returns {Object} Frame of the stack to use for logging the result. |
michael@0 | 21 | */ |
michael@0 | 22 | function findCallerFrame(aStartFrame) { |
michael@0 | 23 | let frame = Components.stack; |
michael@0 | 24 | let filename = frame.filename.replace(/(.*)-> /, ""); |
michael@0 | 25 | |
michael@0 | 26 | // If a start frame has been specified, walk up the stack until we have |
michael@0 | 27 | // found the corresponding file |
michael@0 | 28 | if (aStartFrame) { |
michael@0 | 29 | filename = aStartFrame.filename.replace(/(.*)-> /, ""); |
michael@0 | 30 | |
michael@0 | 31 | while (frame.caller && |
michael@0 | 32 | frame.filename && (frame.filename.indexOf(filename) == -1)) { |
michael@0 | 33 | frame = frame.caller; |
michael@0 | 34 | } |
michael@0 | 35 | } |
michael@0 | 36 | |
michael@0 | 37 | // Walk even up more until the next file has been found |
michael@0 | 38 | while (frame.caller && |
michael@0 | 39 | (!frame.filename || (frame.filename.indexOf(filename) != -1))) |
michael@0 | 40 | frame = frame.caller; |
michael@0 | 41 | |
michael@0 | 42 | return frame; |
michael@0 | 43 | } |