Descriptor of Function.length should be configurable

[RuralHunter]

var desc=Object.getOwnPropertyDescriptor(Function.prototype, 'length');
In Chrome, desc.configurable is true while in htmlunit it's false.

[rbri]

Hi @RuralHunter,
fix is on the way - mozilla/rhino#1284

Is it ok to have a new snapshot build containing this at the end of the week (~ 2.12)?

[RuralHunter]

sure, thanks a lot!

[RuralHunter]

Sorry, it seems more change is needed.

var f=function(){};
var desc=Object.getOwnPropertyDescriptor(f, 'length');

and
var desc=Object.getOwnPropertyDescriptor(alert, 'length');

desc.configurable still gets false.

[rbri]

good point, pr is updated/fixed

[RuralHunter]

Thanks. I tested the new pr but it still didn't fix attributes for builtin functions(maybe others too):
var desc=Object.getOwnPropertyDescriptor(alert, 'length');
This still gets false result.

[rbri]

oh, i guess there is more to do... i have a fix already but i have to think about this to make the most generic solution

[rbri]

@RuralHunter next try is on the way

[RuralHunter]

Thanks. This time it fully works for my testing web site.

[rbri]

As always - it's a pleasure to work with you improving HtmlUnit (and sometimes Rhino).

Thanks for all your input.

[rbri]

Rhino PR is accepted, building a new snapshot is on the way.

[RuralHunter]

Great, thanks!

[rbri]

You can grab it.