[cfe-dev] Requesting Help Understanding ASTs and LibTooling

[Mikhail Ramalho via cfe-dev]

Hi,

If you're interested in libTooling, you can check ESBMC [0], more
specifically our clang_c_converter [1].

We use libTooling to generate the AST and we implement our own AST
traverser code. Currently, it only works for C programs; in the future
we'll release the C++ code.

Thanks,

[0] https://github.com/esbmc/esbmc
[1]
https://github.com/esbmc/esbmc/blob/master/clang-c-frontend/clang_c_convert.cpp


2016-07-08 20:57 GMT+01:00 Jonas Devlieghere via cfe-dev <
cfe-dev at lists.llvm.org>:

> On Fri, Jul 8, 2016 at 8:45 PM, Aryal, Saurav via cfe-dev
> <cfe-dev at lists.llvm.org> wrote:
> > Hi everyone,
> >
> > I am just starting out with Clang and working for a project where I am
> > trying to generate and compare ASTs to measure code similarity.
>
> Welcome, good luck with your project!
>
> > I figured around a way using Clang to get the AST, but it turns out I am
> > expected to use Libtooling.
>
> There are actually different interfaces available to interact with
> Clang's AST. Which one is best depends on your use case. I'd recommend
> looking at [1] to make an informed decision.
>
> > Anyone have an example where I can parse C++
> > code to generate an AST using Libtooling.
>
> Yes; clang's documentation [2] contains an excellent tutorial. There
> are also many blog post available that will get you started with
> concrete examples, including one I wrote myself when I started looking
> at the clang AST [3].
>
> > Also, would love design
> > suggestions regarding comparing tree similarity. any examples with
> > explanations would be really helpful.
> >
> > Thanking you.
> >
> > Sincerely,
> > Saurav
> >
> > _______________________________________________
> > cfe-dev mailing list
> > cfe-dev at lists.llvm.org
> > http://lists.llvm.org/cgi-bin/mailman/listinfo/cfe-dev
> >
>
> [1] http://clang.llvm.org/docs/Tooling.html
> [2] http://clang.llvm.org/docs/LibTooling.html
> [3] https://jonasdevlieghere.com/understanding-the-clang-ast/)
>
> -- Jonas
> _______________________________________________
> cfe-dev mailing list
> cfe-dev at lists.llvm.org
> http://lists.llvm.org/cgi-bin/mailman/listinfo/cfe-dev
>



-- 

Mikhail Ramalho.
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