incubator-flex-dev mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From Om <bigosma...@gmail.com>
Subject Re: Odd undefined property via reference to static type compilation error
Date Mon, 09 Jul 2012 21:53:35 GMT
On Mon, Jul 9, 2012 at 2:40 PM, Jeff Dyer <jeffdyer@acm.org> wrote:

> This is probably a compiler bug, if not a language bug. Instance
> initializers were ill defined in AS3. In the draft ES4 spec we pinned them
> down to be scoped to the class static scope, so references to 'this' or
> instance variables would not be resolved in instance initializers. That
> said, AS3 did allow them with some what vague initialization semantics. The
> bug here is that 'this' is not allowed in instance initializers in strict
> mode.
>
> There are two workarounds: 1/erase the 'this.' prefix; 2/turn off strict
> mode.
>
> Jeff
>
>
>
Thanks for explanation, Jeff.  Interestingly, this["minHeight"] seems to
work fine in the instance initializer, even in strict mode.


>
> On Mon, Jul 9, 2012 at 11:34 AM, Ryan Frishberg <frishy@gmail.com> wrote:
>
> > In ActionScript, it looks like this doesn't work:
> >
> > class A
> > {
> >
> > public var minHeight:Number = 9;
> >
> > protected var minHeight2:Number = this.minHeight;
> >
> > }
> >
> > Someone who knows ActionScript in more detail can probably explain why
> the
> > compilter/runtime can't figure out what "this" should refer to when
> > initializing class properties.
> >
> > -Ryan
> >
> > On Wed, Jul 4, 2012 at 5:53 PM, Justin Mclean <justin@classsoftware.com
> > >wrote:
> >
> > > Hi,
> > >
> > > > BTW, is this an issue in Adobe Flex 4.6 as well?
> > > Yep issue with both 4.6 and 4.8 and couldn't find an existing JIRA
> report
> > > for it.
> > >
> > > Justin
> >
>

Mime
  • Unnamed multipart/alternative (inline, None, 0 bytes)
View raw message