[cfe-dev] Transferring typers between ASTContexts

[Olaf Krzikalla]

Hi @clang,

is there an easy way to reuse types (given by Type*) from a particular 
ASTContext in a different ASTContext?
What I have here are multiple configuration files written in C++. I 
don't want to preserve the complete ASTContext for each file during the 
entire runtime of the program. I just need a way to represent types in a 
manner so that I can rebuild the actual Type pointer later in a 
different ASTContext (I have only simple types here not dependent on any 
expressions and yes, I know, that this constraint simplifies my problem 
quite a lot). Holding types on my own doesn't work due to the private 
constructors of a lot of types (which I don't like BTW).
So one way could be to create and use a separate (dummy) ASTContext. Or 
I utilize the PCH stream but I'm completely unsure how to proceed then 
and if this is a feasible solution at all.

Best regards
Olaf Krzikalla