[cfe-dev] Get symbol properties

[Chris Lattner]

On Apr 16, 2008, at 6:48 AM, Makslane Araújo Rodrigues wrote:

> Hi,
>
> I'm new at clang and llvm. I want to build an IDE thats show the  
> symbol properties when the user select it on the code.
>
> How can I get information about a symbol by giving the SourceLocation?
> (Like if the symbol is an identifier, the type...)
>

The best way to do this is to do a walk over the AST, building up a  
reverse mapping from location -> decl (or location -> expr).  This  
will allow efficient lookup with a SourceLocation.

-Chris

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