Re: [xmlvm-users] Overall Plan??

[Arno P. <ar...@pu...>]

ok, let me explain in more detail: I removed the C++ backend last week 
because it was never really used anyways and had some serious 
deficiencies. The Objective-C backend is still there and will only be 
removed once everyone is happy with the new C backend.

If you are just using XMLVM, you won't even notice the difference 
between the C and the Objective-C backend. After all, the whole point is 
that the generated code is like "assembler that you don't really want to 
look at."

The reason for the new C backend are the following:

- C is a subset of both C++ and Objective-C. In a way it is the lowest
   common denominator and therefore code generated by XMLVM can be run
   on more platforms (other than just the iPhone).
- the C backend will be *much* more runtime efficient since we don't
   have to go through Objective-C's dynamic method dispatch anymore.
- a fully-fledged garbage collector: the Objective-C backend right
   now is using reference counting and if you have a cyclic data
   structure, you will have a memory leak. This won't happen with
   the C backend.
- better J2SE support: the new C backend is already powerful enough
   to cross-compile OpenJDK. This means that you will get much better
   coverage of J2SE API than with the Objective-C backend.

Arno


On 8/27/10 8:29 AM, Charles Johnson wrote:
> I saw the post which say the C++ and Object-C backends have been
> removed.  So was the plan to focus on the C backend just a way to focus
> the efforts ??  Also are you considering any other OS targets than IOS 4
> for iphone ??
>
> Thanks.
>
>
>
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