Comments on: MXMLC WTF (8): Keys can be of any type as long as it’s String

By: Josh McDonald

Josh McDonald — Wed, 10 Sep 2008 07:51:16 +0000

On further messing about, it seems it's not the API's fault, but MXMLC. It isn't smart enough to know that subclasses of Object can only be indexed by QNames except Dictionary.

By: Theo

Theo — Fri, 25 Jul 2008 15:38:50 +0000

I type as * it saves me from casting. It’s not a common issue, but an annoying one.

By: Robert Penner

Robert Penner — Fri, 25 Jul 2008 15:07:10 +0000

Sorry, I misunderstood. So how did you get around this issue? Did you type k as Object or *?

By: Theo

Theo — Fri, 25 Jul 2008 07:45:54 +0000

@Robert

I think it's pretty obvious that I'm talking about looping over the keys of dictionaries, for-each loops are for looping over the values.

@Josh

Good spotting, that must be the root of the issue. This means that the error is not in the compiler but in the Flash API, or a combination of both, since the compiler has to be aware of flash.utils.Proxy.

By: Robert Penner

Robert Penner — Thu, 24 Jul 2008 20:59:47 +0000

It looks like you want to use a “for each” loop.

By: Josh M

Josh M — Thu, 24 Jul 2008 10:03:54 +0000

Unfortunately a side-effect of Flash.utils.Proxy:

nextName(index:int):String;

-Josh