Re: Three weeks left until feature freeze

Hi Hannu,

Hannu Krosing wrote:
> Maybe this functionality could be lifted out of PL/Java and made
> available to all PL-s ?
>
> At least at some API level.
>
>   
I think that what could be shared are the ideas and the semantics. The 
API's that the backend currently expose will give you what's needed to 
do the specialized implementations.

The actual PL mappings are all different because their respective 
"executor" is different. Some languages are typed, others are not. Some 
languages support classes and objects, others don't. Other, more 
esoteric details like the use of a garbage collector or traditional 
alloc/free semantics also affects the actual implementation.

I'm afraid there's not much in the PL/Java type system that could be 
generalized and shared. Perhaps if we had other languages with very 
similar capabilities (like C# for instance) but even then I have some 
doubts. The good news in my opinion is that if PL/Java would make it to 
the core it could make a good reference implementation for other equally 
advanced language mappings.

Regards,
Thomas Hallgren