Re: [Vala] Rv: C to Vala

[Mario Daniel Ruiz Saavedra <desiderantes rocketmail com>]

Doing some research, i found something relevant: http://razum.si/automagical/

It's not the same, but uses the same principle i've thought, declaring some rules about when finding a class 
declaration, translate; etc. Shouldn't be that hard, for a good declarative programmer (i'm not one, not even 
a coder). No bytecode needed, for i wasn't talking about decompiling. The idea is, given a C code with total 
use of GLib, can that be translated to Vala code? I wonder if there is some real problem holding back that 
possibility.

________________________________
 De: Gilzad Hamuni <gilli4 gmx net>
Para: vala-list gnome org 
Enviado: Viernes, 21 de septiembre, 2012 10:33:38
Asunto: Re: [Vala] Rv: C to Vala
 
If I understand correctly, that approach requires an intermediate bytecode either from Java or from .NET to 
finally create sourcecode.

Alas, in the OP's case the best we can get would be native machine code (being different for x64, i386, arm, 
etc) so the parser wouldn't be able to stick to one static 'syntax', even if it would support Vala as an 
output.

I'm guessing here, but: If it's possible to automatically generate vapi's out of g-object-based libraries, 
then a similar tool might be able to create vala-code out of g-object-based sourcecode. But I'm really just 
guessing here, not knowing anything about the effort behind it.
At least the need for such a tool (that turns C-code into Vala just before C-code is generated again) proves 
that vala is a favourable language :)


Interesting though that XMLVM can create Objective-C-code.


Gilzad








-------- Original-Nachricht --------
> Datum: Thu, 20 Sep 2012 12:09:39 -0700
> Von: Eric Gregory <eric yorba org>
> An: Mario Daniel Ruiz Saavedra <desiderantes rocketmail com>
> CC: Vala List <vala-list gnome org>
> Betreff: Re: [Vala] Rv: C to Vala

> On Thu, Sep 20, 2012 at 12:01 PM, Mario Daniel Ruiz Saavedra <
> desiderantes rocketmail com> wrote:
>
> > Unlikely. You are confusing translate with transform. Please argue
> > properly.
>
>
> He's right though -- the relationship between C and Vala is not 1:1 unless
> the C code was generated by valac.  Converting arbitrary C code into Vala
> is possible, but unwieldy.
>
> A professor from my college days did a project that converts between
> various languages.  It's quite complex, but amazingly all the conversion
> is
> done in XSLT.  I'd recommend checking it out to see what kind of territory
> you're wading into here: http://xmlvm.org
>
>   - Eric
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