[cfe-dev] Need help with source-to-source translation

[Marcel Schaible via cfe-dev]

At the moment I am using the ASTConsumer/ASTVisitor interface. But I am 
planing to switch to AST matchers asap.
After scratching my head for a while I found the solution for my 
problem. It was just a misunderstanding of the inheritance tree.

Thanks for your help

Marcel
Am 01.08.2017 um 13:48 schrieb Manuel Klimek:
> On Tue, Aug 1, 2017 at 12:35 PM Marcel Schaible 
> <marcel at schaible-consulting.de <mailto:marcel at schaible-consulting.de>> 
> wrote:
>
>     Manuel, thanks for your help. Of course I went already through a
>     bunch of documentation including libtooling.
>     My tool is performing now the basic setup and can transform some
>     simple cases.
>
>     Do you know by chance how to retrieve the ASTContext from a
>     ReturnStmt and a FuncDecl?
>
>
> Generally, if you use AST matchers you'll have the ASTContext in the 
> callback. What exactly is the problem you're running into?
>
>
>     BTW: Your presentation at the EURO LLVM was very helpful!
>
>
> Thanks! :)
>
>
>     Greetings from Munich
>
>
>     Marcel
>
>
>
>
>     Am 01.08.2017 um 12:16 schrieb Manuel Klimek:
>>     You'll probably want to take a look at libtooling:
>>     https://clang.llvm.org/docs/LibTooling.html
>>
>>     On Fri, Jul 28, 2017 at 4:54 PM Marcel Schaible via cfe-dev
>>     <cfe-dev at lists.llvm.org <mailto:cfe-dev at lists.llvm.org>> wrote:
>>
>>         Hi everyone,
>>
>>         let's consider the example:
>>
>>         int foo(int p) {
>>
>>         if ( p)
>>
>>         /* code path#1 */
>>
>>             return 0;
>>
>>         else    {
>>
>>         /* code path#2 */
>>
>>             return 1;
>>
>>         }
>>
>>         }
>>
>>         1. What is the best solution to get the string representation
>>         of the expression of a return statement?
>>
>>         2. Because I want to perform some transformation with return
>>         statements I have to figure out if they are enclosed in a block?
>>
>>         The example above should be transformed in something like
>>
>>         int foo(int p) {
>>
>>         if ( p) { /* <---- */
>>
>>         /* do some processing ... */
>>
>>           return 0;
>>
>>         } /* <--- */
>>
>>         else    {
>>
>>         /* do some processing ... */
>>
>>             return 1;
>>
>>         }
>>
>>         }
>>
>>         Any hints or pointers are welcome.
>>
>>         Thanks
>>
>>         Marcel
>>
>>         _______________________________________________
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>>         cfe-dev at lists.llvm.org <mailto:cfe-dev at lists.llvm.org>
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>>
>

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