如何更好地跟踪匿名函数的错误

gistfile1.txt

from: https://github.com/montagejs/mr/blob/master/browser.js
       
        // Here we use a couple tricks to make debugging better in various browsers:
        // TODO: determine if these are all necessary / the best options
        // 1. name the function with something inteligible since some debuggers display the first part of each eval (Firebug)
        // 2. append the "//# sourceURL=location" hack (Safari, Chrome, Firebug)
        //  * http://pmuellr.blogspot.com/2009/06/debugger-friendly.html
        //  * http://blog.getfirebug.com/2009/08/11/give-your-eval-a-name-with-sourceurl/
        //      TODO: investigate why this isn't working in Firebug.
        // 3. set displayName property on the factory function (Safari, Chrome)