On Tue, Mar 11, 2008 at 8:32 PM, Kris Zyp <[EMAIL PROTECTED]> wrote:
> >> I've read mention of the weirdness of the timing window between the
> >> property definition and it's marking as non-enumerable. That combined
> >> with the above observation makes me wonder if this should really be
> >> obj.__setNonEnumerableProperty__(name, value);
> >
> > +1
> I like it too. Any chance that by setting the attribute at the same time of
> setting the property value, we could resurrect the possibility of setting
> other attributes as well (with a single method):
>
> Object.prototype.__setPropertyWithAttributes__(name, value, dontEnum:
> boolean, readOnly: boolean, dontDelete: boolean);
>
> And various proposed syntax like:
> obj = {dontenum a: 1, const b: 2, var c: 3};
>
> could be written:
> obj = {};
> obj.__setPropertyWithAttributes__("a",1,true); // property a is not
> enumerable
>
> obj.__setPropertyWithAttributes__("b",2,false,true); // property b is
> readonly
>
> obj.__setPropertyWithAttributes__("c",3,false,false,true); // propery c is
> permanent
>
The order of the boolean parameters is kind of annoying to have to remember.
Would it be OK to shorten the method?
obj.__setProperty__("c"); // undefined value
obj.__setProperty__("c", 2);
obj.__setProperty__("c", undefined, "dontenum", "readonly");
obj.__setProperty__("c", undefined, "dontdelete");
-- or --
obj.__setProperty__("c", undefined). // Reference type.
dontEnum().
readOnly().
dontDelete();
> I wonder if readonly and dontdelete are other attributes where there might
> be benefits derived from trusted code (regular ES3/4) being able to control,
> and untrusted code (ses, caja) not being able to control. I can't think of
> what those benefits might be, maybe another question for Mark or Doug to
> think on.
>
> Kris
>
>
>
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