[cfe-dev] Name lookup in ObjC methods

[Chris Lattner]

On Mar 30, 2008, at 6:05 PM, Argiris Kirtzidis wrote:

> Chris Lattner wrote:
>> The second is more interesting for your namespace patch.  I think  
>> we really do need an AST-side concept of "scope", which is similar  
>> to the parser one, but is also a bit different.  This would allow  
>> the implementation of ScopedDecl::isDefinedOutsideFunctionOrMethod  
>> to correctly handle typedefs defined inside functions etc.
> Just a suggestion, how about a 'DeclContext' AST class that  
> FunctionDecl would inherit from (and NamespaceDecl, RecordDecl):
>
> class FunctionDecl : public ValueDecl, public DeclContext {
> ....
>
> ScopedDecl would have a DeclContext member and  
> isDefinedOutsideFunctionOrMethod would check if it's a FunctionDecl.

Yes, this is exactly what I was thinking (But ContextDecl instead of  
DeclContext :).

With this change, we could then have a TranslationUnitDecl for the top- 
level.  It, ObjCMethod, and NamespaceDecl would also inherit from  
DeclContext.  What do you think?

-Chris