[cfe-dev] Name lookup in ObjC methods

[Ted Kremenek]

On Apr 2, 2008, at 12:57 PM, Argiris Kirtzidis wrote:

> -Remove TranslationUnitDecl because otherwise, FunctionDecl would  
> return
> TranslationUnitDecl as its context and ObjCMethodDecl would
> return NULL (by ContextDecl::getParent()); a bit inconsistent.
> The convention would be that a ContextDecl chain ends at NULL, instead
> of a TranslationUnitDecl.

One thing I like about having a TranslationUnitDecl is that it could  
be used to replace the hack I came up with for the class  
"TranslationUnit".  TranslationUnitDecl could own all top-level decls  
in a translation unit, and thus serve a dual purpose of being a  
ContextDecl and providing a clear owner for all of the Decls.  It thus  
would unify book-keeping we need to do anyway and also provide some  
semantic clarity in the ASTs.