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[Frama-c-discuss] Modifying the AST to insert statements / declarations

2012/3/26 Pierre Karpman <Pierre.Karpman at rennes.supelec.fr>:

> ??? let vi = makeLocalVar (Extlib.the self#current_func) ~scope:cbk vi_name
> vi_type
>
> but this doesn't work (the varinfo's created fine and I can use it to create
> new instructions that are using it, but the variable declaration itself is
> not inserted at the beginning of the block as it should). Is that what you
> were suggesting?

Yes. It could be the case that you're registering the old block
instead of the copied one, but if you do that at the vblock level, the
argument passed to the method is already the new block, so this
shouldn't be a problem.

>
> Anyway I was wondering if something could be done by visiting at the
> statement level and creating a new block around the part of code I'm
> modifying; maybe the variable insertion will work "better" in this case?

This is also a possibility. Of course, this will only work if you use
the new variable only in the statement being visited, but from what
you said this seems to be the case.

Best regards,
-- 
E tutto per oggi, a la prossima volta
Virgile