Re: [xmlvm-users] Getting started

[Sascha H. <sa...@xm...>]

Hi Damian,

what you are seeing is that the scala library itself uses some classes from
the Java Runtime, for example Cloneable. However, this class is not yet in
our compatibility library. Of course one thing you could try to translating
parts of the Java Runtime libraries, but i am sure that some things will
fail this way.

What you said sounds like the right strategy: Try to limit the
cross-compilation to the classes you are actually using. This is a good
starting point to see what needs to be supported by XMLVM in order to make
it work in the end.

// Sascha

2010/6/5 Damian <dam...@gm...>

> Thanks for your reply.
> I don't fully understand the problem you expose.
> I succeeded cross-compiling the scala library (I wanted to try it anyway)
> by adding -Xmx1024m option when launching xmlvm.
> But the objective c compiler won't compile it anyway, it seems it can't
> find "java_lang_Cloneable.h". Isn't Cloneable interface supported by xmlvm?
> I was thinking that maybe I can try to strip down scala library to a
> minimum and then write my own library with the functionality I really need
> around the java library. Though that's exactly what the scala library is,
> the scala library is a 3.5MB jar that's maybe using too many features
> unsupported by xmlvm.
> Please tell me your thoughts.
>
> Damian.
>
> On Fri, Jun 4, 2010 at 7:16 AM, Panayotis Katsaloulis <
> pan...@pa...> wrote:
>
>>
>> On 04 Ιουν 2010, at 2:15 ΠΜ, Damian wrote:
>>
>> >
>> > 2. My language of choice is Scala by far, and my point is to code
>> > IPhone apps using Scala. Is that possible? Have anyone tried to get
>> > xmlvm working with scala?
>>
>>
>> It is possible.
>> In theory you should be able to do so with no problems, since I think
>> this library does not contain any native code (or maybe am wrong).
>>
>> But  there are a lot of things to consider first, before jumping to
>> Scala with xmlvm.
>>
>> First of all, I believe it is totally non-practical to compile the
>> whole scala-lib. It is huge and contains a lot of things that are not
>> directly usable, There are methods and tricks to cut down this
>> overhead, (like a patch I am preparing and will be submitted soon),
>> but still this is not practical - *right now*.
>>
>> Second there are things that should be addressed first before simply
>> compile it with xmlvm, having to do with dependency libraries etc.
>>
>> Another thing: I strongly believe there is NO reason to create a
>> compatibility library for Scala, the only thing that needs to be done
>> is to determine the scala-lib dependencies.
>> And this is a long talk.
>>
>>
>> To summarize: I believe xmlvm is not ready for Scala yet, although I
>> have the same idea as you: I want Scala to be able to be a language of
>> choice - and not only Scala but every JVM based language.
>> Right now you have to be patient though and go with the flow :)
>>
>>
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