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

Hello,

> >/       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.
Hmm, okay.

> >/
> />/  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.
Yep, I'm only using the variables in a very localized fashion. Simple prototyping suggests this approach works all right, so I'm going for it right now and I'll see if it fixes my problem.

Cheers,
Pierre

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