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[Frama-c-discuss] how to modify stmt in AST by using a visitor

Dear Guillaume Petiot,

Thank you so much. It helps a lot.

I am sorry for any inconvenience for not carefully enough.

I can do that now by adding this code, similar with using "-then-on".
Project.set_current prj;

Additionally, whether could I achieve this by using the copy visitor?

Best wishes,

On 10 December 2013 07:44, PETIOT Guillaume <Guillaume.PETIOT at> wrote:
> Hi,
> You applied your transformation on the AST of project prj (called "transfer") when you did
>                  Project.on prj transform()
> but you call the Printer on the current project ("default"). So you have to replace the call to the Printer by something like
>                 Project.on prj (fun () ->
>                    Format.printf "\n\nAfter transfering:\n%a" Printer.pp_file (Ast.get ())
>                 ) ()
> So that the Ast.Get() will return the AST of project "transfer".
> You can also print the AST by invoking frama-c like this: frama-c -load-script pfunc.c -then-on transfer -print
> Regards.
> --
> Guillaume Petiot, PhD student
> ________________________________________
> From: frama-c-discuss-bounces at [frama-c-discuss-bounces at] on behalf of David Yang [abiao.yang at]
> Sent: Tuesday, December 10, 2013 3:47 AM
> To: Frama-C public discussion
> Subject: [Frama-c-discuss] how to modify stmt in AST by using a visitor
> Dear all,
> Inspired by Virgile 's insert_stmt script in this mailing list:
> I am writing a similar script to transform all call stmt of using
> function pointer to a regular call stmt.
> For example, in file "pfunc.c":
> /* --------------pfunc.c--------------------- */
> typedef int p_func (int *, int);
> int main (p_func* func, int *arg1, int arg2)
> {
>   int result;
>   result = (*func)(arg1, arg2);
>   return result;
> }
> /*-------------end----------------*/
> the func variable is a function pointer type. I want transform this
> call to a regular call statement.
> The command I used here is :
> frama-c -load-script pfunc.c
> You could download this two files and then run these script directly
> as long as you has frama-c in your computer.
> Attached please find these two files for this command.
> But the ast file is not changed by this script.
> Is there anybody could help me fixing this problem?
> Thank you very much.
> PS: The frama-c version I used here is: Fluorine-20130601
> All the best,
> -david
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