Re: [Opencxx-users] symbol lookup

[Grzegorz J. <ja...@ac...>]

Hi!

Stefan Seefeld wrote:
> as far as I understand, symbol lookup in opencxx works by traversing a 
> linked list
> of 'Environment' objects. However, the C++ lookup rules seem to suggest 
> at least
> a tree, if not a (directed acyclic) graph. Just think about multiple 
> inheritance
> as the most obvious example.
> 
> Am I missing something ? 

I don't pretend to understand all the details of how it works, but I 
think there is more to it than you describe. Look at 
'SearchBaseOrUsing()', which to my understanding handles the 'forks' in 
the acyclic graph.

Also note that OpenC++ is non-validating, consequently it rightfully 
ignores, say, ambiguities in multiple inheritance.

On the other hand, lookup implementation is missing several features 
(e.g. ADL).

> Does symbol lookup currently work in such cases ?

Why not check empirically?... :-)

Best regards
Grzegorz