Advanced Compilation in google closure compiler

Question

I have this code and i am trying to use closure compiler to optimize the code.

var HrevertGraph = HrevertGraph || {};
HrevertGraph.CircularProgress = (function(){
  function Progress(){
    //Properties
  }

  Progress.prototype.getCenter = function() {
   //method
  }

  //and other methods
  return Progress;

})();
window["HrevertGraph.CircularProgress"] = HrevertGraph.CircularProgress;

I compiled this on advanced option mode and the problem is the compiled code doesn't show the constructor function Progress and its prototype methods. What should I do in this case?

Answer 1

If you don't want closure compiler to change the prototype members you can do:

Progress.prototype['getCenter']=function....

But you have to use the bracket notation in compiled code that calls this function as well.

When you export the constructor you can do:

window["HrevertGraph"] = {};
window["HrevertGraph"]["CircularProgress"] = HrevertGraph.CircularProgress;

[UPDATE]

Here is a function you can run in the console of the page running your uncompiled code. The output in the console is the export, copy and paste that in your code to be compiled and it'll export the constructor and the prototype. For instance specific members (members defined in Progress with this.something=...) there is no easy script to generate export. It's best to handle that in the Progress constructor function with something like this['something']=this.something to export those.

function exportConstructor(objPath){
  var i = -1,len = objPath.length,ret=[]
  ,exPath='window',clPath='window',
          o,thing;
  while(++i<len){
    exPath=exPath+'["'+objPath[i]+'"]';
    clPath=clPath+'.'+objPath[i];
    ret.push(exPath);
    ret.push("=");
    ret.push(clPath);
    ret.push(";\n");
  }
  var i = 0,o=window[objPath[i]];
  while(++i<len){
    o=o[objPath[i]];
  }
  o=o.prototype;
  exPath=exPath+'["prototype"]';
  clPath=clPath+'.prototype';
  for(thing in o){
      if(Object.hasOwnProperty.call(o,thing)){
      exPath=exPath+'["'+thing+'"]';
      clPath=clPath+'.'+thing;
      ret.push(exPath);
      ret.push("=");
      ret.push(clPath);
      ret.push(";\n");
    }
  }
  return ret.join("");
}
console.log(exportConstructor(['HrevertGraph','CircularProgress']));