I know this has some serious ugly to it but in the spirit of knowing what
COULD potentially create the expected behavior, would this not do the trick?
var myClass = (function(){
function myClass(){
var __priv = Object.create(this);
var __this = __priv.__this = this;
this.getTest = function(){
return myClass.prototype.getTest.apply((this
===__this)?__priv:this, arguments);
}
__priv.test = 0;
}
myClass.prototype.getTest = function() {
var __this = this.__this || this, __private = this;
return __private.test;
}
return myClass;
})();
On Mon, Aug 27, 2012 at 11:43 AM, David Bruant <[email protected]> wrote:
> Hi Matthew,
>
> Sorry, I mislead you. Let me retry:
>
> class myClass{
> private test;
>
>
> constructor(){
> this[test] = 0;
> }
>
> getTest(){return this[test]};
> }
>
> desugars to:
>
>
> var myClass = (function(){
> var test = new Name();
>
> function myClass(){
> this[test] = 0;
> }
>
> myClass.prototype.getTest = function(){return this[test]};
>
> return myClass;
> })();
>
> I'm not up-to-date on exact syntax, but that's more or less what you'd get.
> An interesting point you're bringing is that the desugared version could
> just use variables in method scopes instead of private names. It could
> yield in this alternative desugaring:
>
> var myClass = (function(){
> var test;
>
> function myClass(){
> test = 0;
> }
>
> myClass.prototype.getTest = function(){return test};
>
> return myClass;
> })();
>
> It can be read in the code why it doesn't work. There is a unique 'test'
> variable for all instances and not a test variable for each, this makes the
> "getTest" method pointless in this example (because it gets the last set
> value and not the value of the current instance). Being able to attach
> private data to individual objects and being able to access this data in
> inherited method is one of the use case that require private names.
>
> I hope I have make things more clear.
>
> David
>
_______________________________________________
es-discuss mailing list
[email protected]
https://mail.mozilla.org/listinfo/es-discuss
