shield.js

/*! Shield.js v0.0.1 - Stack traces and moar - MIT licensed - Github.com/Shield/shield.js */

// Let's var the library namespace, so you can keep the library to a certain scope, (and also use multiple versions)
// If any issues arise complaining that Shield is undefined (not on the global object) then we can address that when it arises

/**
 * exceptionalException
 * You know, for something that should really never occur
 */
var exceptionalException = function exceptionalExceptionF(message) {
  'use strict';
  alert('HOLY MOLY! Please email this error to [email protected]: \n\nSubject:Error\n' + message);
};

var Shield = (function shieldWrapper() { // I would be ok with omitting we didn't have "shieldWrapper" here
  'use strict';
  
  /**
   * Small case `shield` gets returned and assigned to `Shield`
   * Public functions should be attached to this object
   *
   * Comment blocks like this for multi-line comments
   */
  var shield = {};
  //could also call this shieldApi
  
  /**
   * Headers like this
   */
  
  // Private variables
  var alphabetically,
    ordered,
    var1,
    var2;
  
  // Purely internal functions
  var doSomething = function doSomethingFn() {
    /**
     * Function names are good! But IE chokes when the name is the same as the identifier
     * Therefore, we should always add "Fn" to avoid IE errors
     * In general I've realized this is the best practice and lends itself to great stack traces
     */
  };
  
  // Semi-internal functions should still be exposed for flexibility:
  shield.normalize = function ShieldNormalizeFn(callback) {
    /**
     * Function names for methods
     * methods on an object should simply be the object name + method name camel-cased
     *
     * Note: Shield is capitalized because it get's assigned to `Shield`,
     *       otherwise "shieldNormalizeFn" would be a more consistent convention
     * Also, if you guys wanted we could omit "Fn" in these situations, but I think that's a more complex convention to try and stick too
     */
    if (callback == null) {
      // do synchronous normalization
    } else {
      // Do async things like remote fetching, etc
      callback({
        stack: Array,
        url: location.href
        //...
      });
    }
  };
  
  shield.report = function ShieldReportFn(Error || Object || String) {
    //If object or string AND it has no stack property, add one by doing .stack = (new Error('force-added stack')).stack
    //Then:
    shield.normalize(function(jsonErrorReport){
      //send to subscribers
      //if no subscribers.. then throw an error or alert?
      //If we were to throw in this situation, I would call that an exceptionalException, and call that function above
    });
  };
  
  return shield;
})();

// I don't know why we need a user to initialize with `new`,
var s = new Shield({options: 'foo', url: 'bar'});

// ..So instead let's setup options like:
Shield.options = {
  options: 'stuff'
};