[cfe-dev] Adding new data type

[John McCall]

On Apr 29, 2010, at 1:06 AM, Renato Golin wrote:

> On 28 April 2010 23:36, kalyan ponnala <ponnala.kalyan at gmail.com> wrote:
>> Hello Group,
>> 
>> I am trying to add a new data type to clang. Can someone tell me the
>> important files and classes to look into and how to start in order to lex
>> and parse and generate an AST node to this new data type.
> 
> First you have to add the new type to the Type hierarchy. See
> include/llvm/Type.h and its derived classes, find a suitable spot and
> implement it.

I think you mean include/clang/AST/Type.h.  But changes to the type system can be very subtle;  Kalyan, if you can be more specific about what type you're thinking of adding, we can give better advice.  There isn't much internal documentation on adding a type.

John.