[cfe-users] Clang plugin modify AST

Mani monamimani at gmail.com
Wed Dec 5 22:35:08 PST 2012


I have been playing around with Clang and it's plugin facility for a while. I have a recursiveASTVisitor working. I am interested to modify some special classes that are tagged. I also managed to work this out with the annotate attribute. the part that i can't seem to figure out is how to modify the ast.

For example i would like to  add the sat equivalent of this code to a CXXRecordDecl:
float test = 4.0;
float getTest() const
{return test;}

I read multiple time that the ast is supposed to be immutable, but i also read that there is maybe a solution with the sema. I want to point out I don't want to write this change back into the file but that the change get compile and that i would be able to call getTest in my code.

I hope i have been clear if not i'll be happy to give more details.

Thanks for your help

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