[cfe-dev] Hacking advice

[Jeff Kunkel]

I've been studying ASTConsumer and RecursiveASTVisitor.  The easiest way to
find objects, structs, class, enums, etc is clearly
"HandleTagDeclDefinition" from ASTConsumer (see the function documentation).
However, I still need to be able to gather global functions or functions
local to a namespace.

I am looking at "HandleTopLevelDecl" within the ASTConsumer, but it seems to
be geared for data declartion like "int x,y;". I am not 100 percent sure
that it handles function definitions as well.

Second, ASTContext is a very general class, and it is a bear to parse
through to find what I need. It seems that I could forgo the methods
described above, and I could just use "HandleTranslationUnit" if I wanted to
parse through the ASTContext.

RecursiveASTVisitor looks geared for
template declarations and instantiations. It does not seem viable for the
common function definitions, and it seems inept to handle class, struct,
etc instantiations.

Any other advice or comments?

- Thanks
- Jeff Kunkel

On Sat, Nov 6, 2010 at 11:33 AM, David Chisnall <csdavec at swan.ac.uk> wrote:

> On 5 Nov 2010, at 21:16, Jeff Kunkel wrote:
>
> > I need to gather or visit the classes, methods, and functions defined
> within a give clang compiler instance. Is there a simple interface to
> accomplish this?
>
> This depends on what you wish to accomplish.  The simplest interface is via
> libclang, but it doesn't expose all of the details of the AST.
>  Alternatively, you can use the AST visitor or consumer interfaces.  The
> best approach depends on the level of detail that you need.
>
> David
>
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