The state of Scala optional

On Mon, Jan 16, 2012 at 6:22 AM, Johannes Rudolph <johannes [dot] rudolph [at] googlemail [dot] com> wrote:

From what I've figured out from github you, Paul and Jamie, seem to be
the main contributors of the Scala `optional` library. What's the
current state of it? Is there a 2.9.1 build published somewhere?

There's some monkey in the ointment.  Remember how everyone got all mad when we released 2.9.0 because they couldn't figure out what was in their Option[Int]s like they could in 2.8? That's also how optional did its magic.  So it's sidelined at the moment.  It could be made to work in a variety of ways but since I have no time for it I don't expect to touch it until after we ship reflection.

Ok, thanks for the info, this makes sense. So we can't rely on
optional for scala 2.9.1.

Johannes

On Tue, Jan 17, 2012 at 4:39 AM, Paul Phillips wrote:
>
>
> On Mon, Jan 16, 2012 at 6:22 AM, Johannes Rudolph
> wrote:
>>
>> From what I've figured out from github you, Paul and Jamie, seem to be
>> the main contributors of the Scala `optional` library. What's the
>> current state of it? Is there a 2.9.1 build published somewhere?
>
>
> There's some monkey in the ointment.  Remember how everyone got all mad when
> we released 2.9.0 because they couldn't figure out what was in their
> Option[Int]s like they could in 2.8? That's also how optional did its magic.
>  So it's sidelined at the moment.  It could be made to work in a variety of
> ways but since I have no time for it I don't expect to touch it until after
> we ship reflection.
>

> There's some monkey in the ointment. Remember how everyone got all mad
> when we released 2.9.0 because they couldn't figure out what was in their
> Option[Int]s like they could in 2.8?

I don't remember that, and you made me curious. Is there a discussion on
a list somewhere?

A sad day indeed :-(

Welcome to Scala version 2.9.1.final (Java HotSpot(TM) Server VM, Java 1.6.0_18).Type in expressions to have them evaluated.Type :help for more information.
scala> List(Some(1), None, Some(2))res0: List[Option[Int]] = List(<<NOT TELLING>>,  <<NOT TELLING>> ,  <<NOT TELLING>> )

> To: scala-debate [at] googlegroups [dot] com
> From: hupel [at] in [dot] tum [dot] de
> Subject: [scala-debate] Re: The state of Scala optional
> Date: Tue, 17 Jan 2012 12:23:52 +0100
>
> > There's some monkey in the ointment. Remember how everyone got all mad
> > when we released 2.9.0 because they couldn't figure out what was in their
> > Option[Int]s like they could in 2.8?
>
> I don't remember that, and you made me curious. Is there a discussion on
> a list somewhere?
>

On Tue, Jan 17, 2012 at 12:23 PM, Lars Hupel <hupel [at] in [dot] tum [dot] de> wrote:

> There's some monkey in the ointment.  Remember how everyone got all mad
> when we released 2.9.0 because they couldn't figure out what was in their
> Option[Int]s like they could in 2.8?

I don't remember that, and you made me curious. Is there a discussion on
a list somewhere?

https://issues.scala-lang.org/browse/SI-5255 
http://www.scala-lang.org/node/8888
-jason